METROCALL INC
SC 13D, 1997-08-26
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                  SCHEDULE 13D


                   UNDER THE SECURITIES EXCHANGE ACT OF 1934


                                METROCALL, INC.  
                                ----------------
                                (Name of Issuer)

                          COMMON STOCK $.01 PAR VALUE  
                         -----------------------------
                         (Title of Class of Securities)

                                   591647102  
                                 -------------
                                 (CUSIP Number)

                                Thomas W. White
                           Wilmer, Cutler & Pickering
                              2445 M Street, N.W.
                          Washington, D.C. 20037-1420
                                 (202) 663-6000     
                                 --------------
  (Name, Address and Telephone Number of Person Authorized to Receive Notices
                              and Communications)

                                 August 8, 1997   
                                 --------------
            (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [  ].

NOTE:  Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any  subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).
<PAGE>   2
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 2 OF 42 PAGES
- --------------------------------------------------------------------------------
 1       NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            C.G. Grefenstette and Thomas G. Bigley, Trustees U/A/T Dated
            8/28/68 for Juliet Lea Hillman
- --------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
 3       SEC USE ONLY
- --------------------------------------------------------------------------------
 4       SOURCE OF FUNDS*

            OO
- --------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(d) OR 2(e)                                                  [ ]

- --------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Pennsylvania
- --------------------------------------------------------------------------------
                          7        SOLE VOTING POWER
        NUMBER OF                        0
         SHARES           ------------------------------------------------------
      BENEFICIALLY        8        SHARED VOTING POWER
        OWNED BY
          EACH                        10,878,624
        REPORTING         ------------------------------------------------------
         PERSON           9        SOLE DISPOSITIVE POWER
          WITH
                                      14,130               
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
 11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

            14,130 
- --------------------------------------------------------------------------------
 12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*      [X]

            Excludes shares for which the only basis for asserting beneficial 
            ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
 13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            0.05%                                                               
- --------------------------------------------------------------------------------
 14      TYPE OF REPORTING PERSON*

            OO  
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   3
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 3 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

            C.G. Grefenstette and Thomas G. Bigley, Trustees U/A/T dated 
            8/28/68 for Audrey Hilliard Hillman  
            25-6094896                                   
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

            OO   
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

            Pennsylvania  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                     14,130                                    
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
            14,130                                                   
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

            Excludes shares for which the only basis for asserting beneficial 
            ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

            0.05%                      
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

            OO        
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   4
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 4 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             C.G. Grefenstette and Thomas G. Bigley, Trustees U/A/T dated 
             8/28/68 for Henry Lea Hillman, Jr.
             25-6094897                                                  
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             Pennsylvania                                                 
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                     14,130
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             14,130                                                      
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.05%
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             OO
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   5
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 5 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              C.G. Grefenstette and Thomas G. Bigley, Trustees U/A/T dated 
              8/28/68 for William Talbott Hillman
              25-6094899                                           
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

              OO
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             Pennsylvania                                       
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                           0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
         WITH             9        SOLE DISPOSITIVE POWER

                                     14,130                                   
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                          0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             14,130                  
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement. 
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.05%                                                             
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             OO                                                         
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   6
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 6 OF 42 PAGES

- --------------------------------------------------------------------------------
 1       NAME OF REPORTING PERSON
         S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Henry L. Hillman, Elsie Hilliard Hillman and C.G. Grefenstette, 
             Trustees of the Henry L. Hillman Trust U/A dated November 18, 1985
             18-2145466                                                       
- --------------------------------------------------------------------------------
 2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
 3       SEC USE ONLY

- --------------------------------------------------------------------------------
 4       SOURCE OF FUNDS*

             OO                                                             
- --------------------------------------------------------------------------------
 5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
         ITEMS 2(d) OR 2(e)                                                  [ ]

- --------------------------------------------------------------------------------
 6       CITIZENSHIP OR PLACE OF ORGANIZATION

             Pennsylvania  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER                  

                                     42,391                                   
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER

                                     1,154,185                             
- --------------------------------------------------------------------------------
 11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,196,576               
- --------------------------------------------------------------------------------
 12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*      [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the voting Agreement  
- --------------------------------------------------------------------------------
 13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             4.1%
- --------------------------------------------------------------------------------
 14      TYPE OF REPORTING PERSON*
             OO 
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   7
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 7 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             C.G. Grefenstette, as Trustee for Various Trusts                
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                              
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER
                                         0
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER

                                     1,253,096                              
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,253,096                                                       
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes 11,900 shares owned in his individual capacity and shares
             for which the only basis for asserting beneficial ownership is 
             the Voting Agreement.                                           
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             4.3%                                                            
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*
             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   8
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 8 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Thomas G. Bigley, as Trustee for Various Trusts                 
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                             
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER
                                         0
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER

                                      56,520                                 
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             56,520                                                         
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.2%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*
             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   9
                                  SCHEDULE 13D


CUSIP NO.  591647102                                          PAGE 9 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Henry L. Hillman, as Trustee for the Henry L. Hillman Trust     
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                            
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO 
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER
                                         0
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER

                                     1,196,576                               
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,196,576                                                       
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             4.1%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*
             IN                                                           
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   10
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 10 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Elsie Hilliard Hillman, as Trustee for the Henry L. Hillman Trust
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                             
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER
                                         0
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER

                                     1,196,576                            
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,196,576                                                    
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             4.1%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*
             IN                                                            
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   11
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 11 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Wilmington Securities, Inc.
             51-0114700                                                     
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                            
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             Delaware                                                 
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                     10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                      1,154,185                              
                          ------------------------------------------------------
                         10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             1,154,185                                                     
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             4.0%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             CO                                                              
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   12
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 12 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             William L. Collins, III                                        
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                              
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                 
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                     10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                      379,554
                          ------------------------------------------------------
                         10       SHARED DISPOSITIVE POWER

                                        0                                   
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             379,554                                                         
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes 305 shares owned by William L. Collins, Jr. and shares for
             which the only basis for asserting beneficial ownership is the 
             Voting Agreement.                                             
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             1.3%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                            
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   13
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 13 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

              Harry L. Brock, Jr.                                          
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

              OO                                                           
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

              United States                                                
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                     10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                      3,663,710                            
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

              3,663,710                                                    
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

              Excludes 215,000 shares held by Suzanne S. Brock and shares for 
              which the only basis for asserting beneficial ownership is the 
              Voting Agreement.   
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

              12.5%
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

              IN                                                           
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   14
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 14 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Suzanne S. Brock                                                
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                             
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                 
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                     10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                      215,000                              
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             215,000                                                        
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes 3,663,710 shares beneficially owned by Harry L. Brock, Jr.
             and shares for which the only basis for asserting beneficial 
             ownership is the Voting Agreement.  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.7%                                                               
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                            
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   15
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 15 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Ronald V. Aprahamian                                          
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                             
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
                          7        SOLE VOTING POWER
        NUMBER OF                        0
         SHARES           ------------------------------------------------------
      BENEFICIALLY        8        SHARED VOTING POWER
        OWNED BY
          EACH                        10,878,624
        REPORTING         ------------------------------------------------------
         PERSON           9        SOLE DISPOSITIVE POWER
          WITH
                                      56,000                                
                          ------------------------------------------------------
                         10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             56,000                                                         
 -------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement. 
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.2%                                                               
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   16
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 16 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Francis A. Martin, III                                        
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                           
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                           0
      BENEFICIALLY        ------------------------------------------------------
       OWNED BY           8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                     67,000                                 
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                          0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             67,000                                                         
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             0.2%                                                             
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   17
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 17 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Ray Russenberger                                                
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                            
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                   
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                      10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                       2,144,448                            
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             2,144,448                                                      
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             7.4%
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   18
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 18 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             Elliot H. Singer                                              
- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                            
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             United States                                                  
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                     10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                      1,025,797
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
          
             1,025,797
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*     [X]

             Excludes shares for which the only basis for asserting beneficial
             ownership is the Voting Agreement  
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             3.5%                                                              
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             IN                                                             
- --------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   19
                                  SCHEDULE 13D


CUSIP NO.  591647102                                         PAGE 19 OF 42 PAGES

- --------------------------------------------------------------------------------
  1       NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

             UBS Capital LLC

- --------------------------------------------------------------------------------
  2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                         (a) [X]
                                                                         (b) [ ]
- --------------------------------------------------------------------------------
  3       SEC USE ONLY

- --------------------------------------------------------------------------------
  4       SOURCE OF FUNDS*

             OO                                                              
- --------------------------------------------------------------------------------
  5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
          ITEMS 2(d) OR 2(e)                                                 [ ]

- --------------------------------------------------------------------------------
  6       CITIZENSHIP OR PLACE OF ORGANIZATION

             Delaware                                                      
- --------------------------------------------------------------------------------
        NUMBER OF         7        SOLE VOTING POWER
         SHARES                          0
      BENEFICIALLY        ------------------------------------------------------
        OWNED BY          8        SHARED VOTING POWER
          EACH
        REPORTING                    10,878,624
         PERSON           ------------------------------------------------------
          WITH            9        SOLE DISPOSITIVE POWER

                                     2,074,019
                          ------------------------------------------------------
                          10       SHARED DISPOSITIVE POWER
                                         0
- --------------------------------------------------------------------------------
  11      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             2,074,019                                                      
- --------------------------------------------------------------------------------
  12      CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES SHARES*    [X]

             Excludes shares for which the only basis for asserting beneficial 
             ownership is the Voting Agreement             
- --------------------------------------------------------------------------------
  13      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             6.9% 
- --------------------------------------------------------------------------------
  14      TYPE OF REPORTING PERSON*

             00
- -------------------------------------------------------------------------------

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.
<PAGE>   20
SCHEDULE 13D                                                 PAGE 20 OF 42 PAGES


ITEM 1.  SECURITY AND ISSUER.

        This Statement relates to the common stock, $.01 par value (the "Common
Stock") of Metrocall, Inc. (the "Issuer").  The principal executive office of
the Issuer is located at 6677 Richmond Highway, Alexandria, Virginia 22306.

ITEM 2.  IDENTITY AND BACKGROUND.

         This statement is being filed on behalf of the following persons who
are collectively referred to as the "Reporting Persons" (except for those
persons for which information has been required to be provided pursuant to
General Instruction C of Schedule 13D, which is contained in Exhibit 99.2
attached hereto and Exhibit 99.3 attached hereto).

         The parties comprising the Reporting Persons are filing this Statement
jointly as they may be deemed to be a "group" within the meaning of Section
13(d)(3) of the Securities Exchange Act of 1934, as amended, solely as a result
of the Voting Agreement described in Item 4 below.  A joint  filing agreement
among the Reporting Persons is attached hereto as Exhibit 99.1.  ProNet Inc.
("ProNet") may also be deemed to be a part of this "group"; however, the
Reporting Persons understand that ProNet has filed or will file a separate
Statement on Schedule 13D.

         Trust for Juliet Lea Hillman dated 8/28/68 ("JLH Trust")
(C.G.Grefenstette and Thomas G. Bigley, Trustees) is a Pennsylvania trust
engaged in diversified investments and operations.  The principal business and
office of the JLH Trust is located at 2000 Grant Building, Pittsburgh,
Pennsylvania 15219. The principal business and office of C.G. Grefenstette is
located at 2000 Grant Building, Pittsburgh, Pennsylvania 15219.  The principal
business and office of Thomas G. Bigley is located at One Oxford Centre, 28th
Floor, Pittsburgh, Pennsylvania, 15219.

         Trust for Audrey Hilliard Hillman dated 8/28/68 ("AHH Trust") (C.G.
Grefenstette and Thomas G. Bigley, Trustees) is a Pennsylvania trust engaged in
diversified investments and operations. The principal business and office of
the AHH Trust is located at 2000 Grant Building, Pittsburgh, Pennsylvania
15219.  The principal business and office of C.G. Grefenstette is located at
2000 Grant Building, Pittsburgh, Pennsylvania 15219.  The principal business
and office of Thomas G. Bigley is located at One Oxford Centre, 28th Floor,
Pittsburgh, Pennsylvania, 15219.

         Trust for Henry Lea Hillman, Jr. dated 8/28/68 ("HLHJR Trust")
(C.G.Grefenstette and Thomas G. Bigley, Trustees) is a Pennsylvania trust
engaged in diversified investments and operations.  The principal business and
office of the HLHJR Trust is located at 2000 Grant Building, Pittsburgh,
Pennsylvania 15219.  The principal business and office of C.G. Grefenstette is
located at 2000 Grant Building, Pittsburgh, Pennsylvania 15219.  The principal
business and office of Thomas G. Bigley is located at One Oxford Centre, 28th
Floor, Pittsburgh, Pennsylvania, 15219.

         Trust for William Talbott Hillman dated 8/28/68 ("WTH Trust") (C.G.
Grefenstette and Thomas G. Bigley, Trustees) is a Pennsylvania trust engaged in
diversified investments and operations.  The principal business and office of
the WTH Trust is located at 2000 Grant Building, Pittsburgh, Pennsylvania
15219.  The principal business and office of C.G. Grefenstette is located at
2000 Grant Building, Pittsburgh, Pennsylvania 15219.  The principal business
and office of Thomas G. Bigley is located at One Oxford Centre, 28th Floor,
Pittsburgh, Pennsylvania, 15219.

         The Henry L. Hillman Trust dated November 18, 1985 (the "HLH Trust")
(Henry L. Hillman, Elsie Hilliard Hillman and C.G.  Grefenstette, Trustees) is
a Pennsylvania trust engaged in diversified investments and operations. The
principal business and office of the HLH Trust is located at 2000 Grant
Building, Pittsburgh, Pennsylvania 15219.  The principal business and office of
each of Henry L. Hillman, Elsie Hilliard Hillman, and C.G. Grefenstette is
located at 2000 Grant Building, Pittsburgh, Pennsylvania 15219.
<PAGE>   21
SCHEDULE 13D                                                 PAGE 21 OF 42 PAGES


         Wilmington Securities, Inc. ("Wilmington Securities") is a Delaware
corporation and a wholly-owned subsidiary of Wilmington Investments, Inc.,
which is a wholly-owned subsidiary of The Hillman Company. Wilmington
Securities is engaged in diversified investments and operations.  The principal
business and office of Wilmington Securities is located at 824 Market Street,
Suite 900, Wilmington, Delaware 19801.

         C.G. Grefenstette is Chairman of the Board and Director of The Hillman
Company and Trustee for the JLH Trust, the AHH Trust, the HLHJR Trust, the WTH
Trust and the HLH Trust.  The principal business and office of C.G.
Grefenstette is located at 2000 Grant Building, Pittsburgh, Pennsylvania 15219. 
C.G. Grefenstette is a United States citizen.

         Thomas G. Bigley is a retired Managing Partner of Ernst & Young.  He
is Trustee for the JLH Trust, the AHH Trust, the HLHJR Trust, and the WTH
Trust.  The principal business and office of Thomas G. Bigley is located at One
Oxford Centre, 28th Floor, Pittsburgh, Pennsylvania 15219.  Mr. Bigley is a
United States citizen.

         Henry L. Hillman is Chairman of the Executive Committee and Director
of The Hillman Company and Trustee of the HLH Trust.  The principal business
and office of Henry L. Hillman is located at 2000 Grant Building, Pittsburgh,
Pennsylvania 15219.  Henry L.  Hillman is a United States citizen.

         Elsie Hilliard Hillman is a Director of The Hillman Company and
Trustee of the HLH Trust.  The principal business and office of Elsie Hilliard
Hillman is located at 2000 Grant Building, Pittsburgh, Pennsylvania 15219.
Elsie Hilliard Hillman is a United States citizen.

         William L. Collins, III is Vice Chairman of the Board of Directors, a
Director, President, and Chief Executive Officer of the Issuer.  The principal
business and office of William L. Collins is located at 6677 Richmond Highway,
Alexandria, Virginia 22306.  Mr. Collins is a citizen of the United States.

         Harry L.  Brock, Jr. is a Director of the Issuer.  The principal
business and office of Harry L. Brock is located at 6677 Richmond Highway,
Alexandria, Virginia 22306.  Mr. Brock is a citizen of the United States.

         Suzanne S. Brock is a Director of the Issuer.  The principal business
and office of Suzanne S. Brock is located at 314 South St. Asaph Street,
Alexandria, Virginia 22314.  Mrs. Brock is a citizen of the United States.

         Ronald V. Aprahamian is a Director of the Issuer.  The principal
business and office of Ronald V. Aprahamian is located at 6677 Richmond
Highway, Alexandria, Virginia 22306.  Mr. Aprahamian is a citizen of the United
States.

         Francis A. Martin, III is a Director of the Issuer.  The principal
business and office of Francis A. Martin, III is located at U.S. Media Group,
Inc., 275 Battery Street, Suite 1850, San Francisco, California, 94111-3335.
Mr. Martin is a citizen of the United States.

         Ray Russenberger is a Director of the Issuer.  The principal business
and office of Ray Russenberger is located at 6677 Richmond Highway, Alexandria,
Virginia 22306.  Mr. Russenberger is a citizen of the United States.

         Elliot H. Singer is a Director of the Issuer.  The principal business
and office of Elliot H. Singer is located at 6677 Richmond Highway, Alexandria,
Virginia 22306.  Mr. Singer is a citizen of the United States.

         Unless otherwise stated above, information concerning the name,
position, and business address of each executive officer and director of the
foregoing Reporting Persons and the persons controlling such Reporting Persons,
if any, is set forth in Exhibit 99.2 attached hereto.
<PAGE>   22
SCHEDULE 13D                                                 PAGE 22 OF 42 PAGES


         During the last five years, none of the foregoing Reporting Persons
nor, to the best of their knowledge, any person named in Exhibit 99.2 to this
Schedule 13D, (i) has been convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors), or (ii) has been a party to a civil
proceeding of a judicial or administrative body of competent jurisdiction and
as a result of such proceeding was or is subject to a judgment, decree or final
order enjoining future violations of, or prohibiting or mandating activities
subject to, federal or state securities laws or finding any violation with
respect to such laws.

         UBS Capital LLC ("UBS") is a limited liability company organized under
the laws of the state of Delaware. UBS hereby incorporates by reference the
information set forth in Item 2 of the statement on Schedule 13D filed by UBS
on December 27, 1996, and Appendix 1 thereto, as revised. A copy of the 
pertinent pages of this document, including Appendix 1 thereto, as revised, is 
included as Exhibit 99.3 hereto and incorporated by reference herein.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         The Reporting Persons are filing this statement on Schedule 13D as a
result of their entrance into the Voting Agreement attached hereto as Exhibit
99.4 and not as a result of any acquisition of Common Stock by the Reporting
Persons.  Recent acquisitions of Common Stock by Mrs. Suzanne S. Brock, as set
forth in Item 5 herein, were made using personal funds.

ITEM 4.  PURPOSE OF TRANSACTION.

         Pursuant to a Stockholders Voting Agreement among ProNet and the
Reporting Persons dated as of August 8, 1997 ("Voting Agreement"), each of the
Reporting Persons has agreed to vote in favor of (i) approval of the merger of
ProNet with and into the Issuer pursuant to an Agreement and Plan of Merger
between ProNet and the Issuer ("Merger Agreement") dated August 8, 1997 (the
"Merger Proposal"), and (ii) a proposed amendment to the Issuer's certificate
of incorporation to increase the number of authorized shares of Common Stock to
80,000,000 (the "Amendment Proposal").  The Issuer's Board of Directors has
adopted resolutions recommending and approving the Merger Proposal and the
Amendment Proposal (the "Proposals") and directing that they be submitted to 
the stockholders of the Issuer at a special stockholders meeting (the
"Meeting").

         The Voting Agreement obligates each Reporting Person to vote all
shares owned by such Reporting Person at the time of the Meeting in favor of
the Proposals, and grants an irrevocable proxy to ProNet to vote such shares in
favor of the Proposals, if such Reporting Person does not do so.  The Voting
Agreement places certain restrictions on the Reporting Persons' right to
transfer shares of Common Stock subject to the Voting Agreement, provided that
some shares owned by certain Reporting Persons are excepted from these 
restrictions.

         The Reporting Persons entered into the Voting Agreement as a
condition to ProNet's willingness to enter into the Merger Agreement.  Pursuant
to the Merger Agreement, ProNet will be merged into the Issuer, and each share
of ProNet common stock will be converted into 0.9 fully paid and non-assessable
shares of Common Stock, subject to certain adjustments.

         The purpose of the Amendment Proposal is to increase the number of
authorized and unissued and unreserved shares of Common Stock in order to
provide shares of Common Stock for issuance as consideration for ProNet's
shares of common stock in the Merger and to authorize additional unissued
shares for future corporate purposes.

         The description of the Voting Agreement is not necessarily  complete,
and reference is made to the copy of the Voting Agreement, which is
incorporated by reference into Exhibit 99.4 hereto.  Reference is also made to
the Merger Agreement, which is incorporated by reference into Exhibit 99.5
hereto.
<PAGE>   23
SCHEDULE 13D                                                 PAGE 23 OF 42 PAGES



 ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER.

         The following table sets forth the beneficial ownership of shares of
the Issuer's Common Stock by (a) each Reporting Person and (b) each person for
whom information has been required to be provided pursuant to General
Instruction C of Schedule 13D who beneficially owns Common Stock.  The table
below excludes shares that may be acquired upon exercise of options that are
not currently exercisable or exercisable within 60 days. As of August 1, 1997,
there were 29,146,436 shares of the Issuer's Common Stock outstanding.  In the
aggregate, the Reporting Persons beneficially own 10,878,624 (including shares
obtainable upon exercise of options or warrants that are exercisable within 60
days), over which they exercise shared voting power pursuant to the Voting
Agreement. These shares represent approximately 35.6% of the Common Stock of
the Issuer (including for purposes of this calculation options or warrants held
by the Reporting Persons and exercisable within 60  days).  Except for shared
rights to vote pursuant to the Voting  Agreement and as otherwise noted, each
person has sole voting and dispositive control over the shares identified
below.  Each Reporting Person disclaims beneficial ownership of those shares
for which the only basis for asserting beneficial ownership is the Voting
Agreement.

<TABLE>
<CAPTION>
                                                                Aggregate Number of      Percentage of Class
                  Name                                                 Shares                 of Shares     
- ---------------------------------------                       -----------------------  ---------------------
<S>                                                           <C>                            <C>
JLH Trust                                                            14,130                  0.05%

AHH Trust                                                            14,130                  0.05%

HLHJR Trust                                                          14,130                  0.05%

WTH Trust                                                            14,130                  0.05%

HLH Trust(1)                                                      1,196,576                  4.1%

C.G. Grefenstette(2)                                              1,253,096                  4.3%

Thomas G. Bigley(3)                                                  56,520                  0.2%

Henry L. Hillman(1)                                               1,196,576                  4.1%

Elsie Hilliard Hillman(1)                                         1,196,576                  4.1%     
                                                                                                 
Wilmington Securities, Inc.(4)                                    1,154,185                  4.0%
                                                                                                 
William L. Collins, III(5)                                          379,554                  1.3%
                                                                                                 
Harry L. Brock, Jr.(6)                                            3,663,710                 12.5%
                                                                                                 
Suzanne S. Brock(7)                                                 215,000                  0.7%
                                                                                                 
Ronald V. Aprahamian(8)                                              56,000                  0.2%
                                                                                                 
Francis A. Martin, III (9)                                           67,000                  0.2%

Ray Russenberger(10)                                              2,144,448                  7.4%
</TABLE>
<PAGE>   24
SCHEDULE 13D                                                 PAGE 24 OF 42 PAGES


<TABLE>
 <S>                                                  <C>           <C>
 Elliot H. Singer(11)                                 1,025,797     3.5%

 UBS Capital LLC(12)                                  2,074,019     6.9%
</TABLE>




- -----------------------
(1)   Includes:  (a) 1,154,185 shares held of record by Wilmington Securities,
Inc. and with respect to which HLH Trust shares voting and dispositive power
with Mr. and Mrs. Hillman, Wilmington Securities, Inc. and Mr. Grefenstette as
a result of their control of The Hillman Company, of which Wilmington
Securities, Inc. is an indirect, wholly-owned subsidiary; and (b) 42,391 shares
held of record by the HLH Trust and with respect to which Mr. and Mrs. Hillman
share voting and dispositive power with Mr.  Grefenstette as a result of their
position as co-trustees of the HLH Trust.

(2)   Includes:  (a) 1,154,185 shares held of record by Wilmington Securities,
Inc. and with respect to which Mr. Grefenstette shares voting and dispositive
power with Wilmington Securities, Inc. and Mr. and Mrs. Hillman as a result of
their control of The Hillman Company, of which Wilmington Securities, Inc. is
an indirect, wholly-owned subsidiary; (b) 42,391 shares held of record by the
HLH Trust and with respect to which Mr. Grefenstette shares voting and
dispositive power with Mr. and Mrs. Hillman as a result of his position as
co-trustee of the HLH Trust; and (c) 56,520 shares held by the JLH Trust, the
AHH Trust, the HLHJR Trust, and the WTH Trust with respect to which Mr.
Grefenstette shares voting and dispositive power with Mr. Bigley as a result of
his position as co-trustee of these trusts.  Excludes 11,900 shares held by Mr.
Grefenstette in his individual capacity which are not subject to the Voting
Agreement.

(3)   Includes 56,520 shares held by the JLH Trust, the AHH Trust, the HLHJR
Trust, and the WTH Trust with respect to which Mr.  Bigley shares voting and
dispositive power with Mr. Grefenstette as a result of his position as
co-trustee of these trusts.

(4)   Wilmington Securities shares voting and dispositive power with Messrs.
Grefenstette and Hillman and Mrs. Hillman as a result of their control of The
Hillman Company, of which Wilmington Securities, Inc. is an indirect, wholly-
owned subsidiary.

(5)   Includes:  (a) 19,396 shares held by USA Telecommunications, Inc. with
respect to which Mr. Collins shares voting and dispositive power as a result of
his control with respect to that company; (b) 492 shares held by Collins &
Clarke First Page Investment Partnership, with respect to which Mr. Collins
shares voting and dispositive power as a result of his control with respect to
that company; and (c) 11,846 shares that may be acquired upon exercise of
options that are currently exercisable or exercisable within 60 days.  Excludes
305 shares owned by William L. Collins, Jr., with respect to which Mr. Collins
disclaims beneficial ownership.

(6)   Includes 127,510 shares that may be acquired upon exercise of options
that are currently exercisable or exercisable within 60 days.  Excludes 215,000
shares beneficially owned by Mrs. Brock, with respect to which Mr. Brock
disclaims beneficial ownership.

(7)   Includes 5,000 shares that may be acquired upon exercise of options that
are currently exercisable or excercisable within 60 days. Excludes 3,663,710 
shares beneficially owned by Mr. Brock, with respect to which Mrs. Brock 
disclaims beneficial ownership.

(8) Includes 16,000 shares that may be acquired upon exercise of options that
are currently exercisable or exercisable within 60 days.

<PAGE>   25
SCHEDULE 13D                                                 PAGE 25 OF 42 PAGES


(9)  Includes 17,000 shares that may be acquired upon exercise of options that
are currently exercisable or exercisable within 60 days.

(10) Includes 15,000 shares that may be acquired upon exercise of options that
are currently exercisable or exercisable within 60 days.

(11) Includes 156,452 shares that may be acquired upon exercise of options
that are currently exercisable or exercisable within 60 days.

(12) Includes 1,088,654 shares that may be acquired upon exercise of
warrants that are currently exercisable or exercisable within 60 days. 
Includes 15,000 shares that may be acquired upon exercise of options that are
currently exercisable or exercisable within 60 days.  Excludes shares of Common
Stock which may be acquired upon conversion of preferred shares that are not
currently convertible or convertible within 60 days.

     Mr. Harry L. Brock, Jr. purchased 50,000 shares of Common Stock through 
a broker from June 10, 1997 through June 17, 1997 at a price between $5.04 and 
$5.75. Mrs. Suzanne S. Brock purchased 4,000 shares of Common Stock through a
broker on June 17, 1997 at a price of $5.00 per share.  Except as set forth in
the Schedule 13D filed by UBS Capital LLC on December 27, 1996, and subsequent
amendments thereto, the Reporting Persons and the persons listed as required by
General Instruction C have not effected any other transaction in the Issuer's
Common Stock within the last 60 days.

ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
TO SECURITIES OF THE ISSUER.

     Other than the Voting Agreement and the agreements identified in Item
6 of the statement on Schedule 13D filed by UBS on December 27, 1996, there are
no  contracts, arrangements, understandings or relationships between the
Reporting  Persons and any other person with respect to the securities of the
Issuer.  A description of the material terms of the agreements identified in
Item 6 of the statement on Schedule 13D filed by UBS on December 27, 1996 is
incorporated herein by reference to a Form 8-K filed by the Issuer on November
21, 1996, to which the agreements are attached as exhibits.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

<TABLE>
<S>                       <C>
Exhibit 99.1              Agreement relating to the filing of  joint statements
                          as required by Rule 13d-1(f)(1) of the Securities
                          Exchange Act of 1934, as amended.
                          
Exhibit 99.2              Information Regarding Executive Directors and Officers
                          of Wilmington Securities, Inc. and The Hillman Company
                          
Exhibit 99.3              Item 2 and Appendix 1 from the Statement on Schedule
                          13D filed by UBS Capital LLC on December 27, 1996.

Exhibit 99.4              Stockholders Voting Agreement among ProNet and
                          Reporting Persons, dated as of August 8, 1997
                          (incorporated by reference to Issuer's Current Report
                          on Form 8-K filed August 12, 1997).
                          
Exhibit 99.5              Agreement and Plan of Merger between the Issuer and
                          ProNet, dated as of August 8, 1997 (incorporated by
                          reference to Issuer's Current Report on Form 8-K filed
                          August 12, 1997).
</TABLE>
<PAGE>   26
SCHEDULE 13D                                                 PAGE 26 OF 42 PAGES


                                  SIGNATURES

         After reasonable inquiry and to the best of our knowledge and belief,
the undersigned certify that the information set forth in this Statement on
Schedule 13D is true, complete and correct.


Dated: August __, 1997

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR JULIET LEA HILLMAN

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR AUDREY HILLIARD HILLMAN

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR HENRY LEA HILLMAN, JR.

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               WILLIAM TALBOTT HILLMAN



                               By:     /s/ C.G. GREFENSTETTE
                                       --------------------------
                                       C.G. Grefenstette, Trustee



                               By:     /s/ THOMAS G. BIGLEY
                                       --------------------------
                                       Thomas G. Bigley, Trustee



                               HENRY L. HILLMAN, ELSIE HILLIARD
                               HILLMAN AND C.G. GREFENSTETTE,
                               TRUSTEES OF THE HENRY L. HILLMAN
                               TRUST U/A DATED NOVEMBER 18, 1985



                               By:     /s/ C.G. GREFENSTETTE
                                       --------------------------
                                       C.G. Grefenstette, Trustee
<PAGE>   27
SCHEDULE 13D                                                 PAGE 27 OF 42 PAGES


                               WILMINGTON SECURITIES, INC.


                               By:     /s/ DARLENE CLARKE
                                       --------------------------
                                       Darlene Clarke
                               Title:  Vice President, Chief Financial Officer
                                       and Treasurer



                               /s/ WILLIAM L. COLLINS, III
                               --------------------------
                               William L. Collins, III



                               /s/ HARRY L. BROCK, JR.
                               --------------------------
                               Harry L. Brock, Jr.



                               /s/ SUZANNE S. BROCK
                               --------------------------
                               Suzanne S. Brock

<PAGE>   28
SCHEDULE 13D                                                 PAGE 28 OF 42 PAGES





                             /s/ RONALD V. APRAHAMIAN
                             --------------------------
                             Ronald V. Aprahamian


                             /s/ FRANCIS A. MARTIN, III
                             --------------------------
                             Francis A. Martin, III


                             /s/ RAY RUSSENBERGER
                             --------------------------
                             Ray Russenberger


                             /s/ ELLIOT H. SINGER
                             --------------------------
                             Elliot H. Singer

                             UBS CAPITAL LLC



                             By:   /s/ MICHAEL GREENE
                             --------------------------
                                       Michael Greene


                             By:   /s/ MARC A. UNGER
                             --------------------------
                                       Marc A. Unger
<PAGE>   29


SCHEDULE 13D                                                 PAGE 29 OF 42 PAGES


                                 Exhibit Index





<TABLE>
<CAPTION>
Exhibit                                                                                                             Page   
- ------------------------------------------------------------------------------------------------------------------
<S>                               <C>
Exhibit 99.1                      Agreement relating to the filing of  joint statements as required by Rule          30
                                  13d-1(f)(1) of the Securities Exchange Act of 1934, as amended.
                                  
Exhibit 99.2                      Information Regarding Executive Directors and Officers of Wilmington               33
                                  Securities, Inc. and The Hillman Company

Exhibit 99.3                      Item 2 from the Statement on Schedule 13D filed by UBS Capital LLC on              36
                                  December 27, 1996, and Appendix 1 thereto, as revised.
                                  
Exhibit 99.4                      Stockholders Voting Agreement among ProNet and Reporting Persons, dated
                                  as of August 8, 1997 (incorporated by reference to Issuer's Current
                                  Report on Form 8-K filed August 12, 1997).
                                  
Exhibit 99.5                      Agreement and Plan of Merger between the Issuer and ProNet, dated as of
                                  August 8, 1997 (incorporated by reference to Issuer's Current Report on
                                  Form 8-K filed August 12, 1997).
</TABLE>

<PAGE>   1
SCHEDULE 13D                                                 PAGE 30 OF 42 PAGES


                                  EXHIBIT 99.1

                           Agreement of Joint Filing

           Pursuant to Rule 13d-1(f)(1) of the Securities Exchange Act of 1934,
as amended, the undersigned agree that the Statement on Schedule 13D to which
this Exhibit 99.1 is attached, and any subsequent amendments thereto, are filed
on behalf of each of them.


Dated:  August __, 1997


                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR JULIET LEA HILLMAN

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR AUDREY HILLIARD HILLMAN

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               FOR HENRY LEA HILLMAN, JR.

                               C.G. GREFENSTETTE AND THOMAS G.
                               BIGLEY, TRUSTEES U/A/T DATED 8/28/68
                               WILLIAM TALBOTT HILLMAN



                               By:     /s/ C.G. GREFENSTETTE
                                       ---------------------------
                                       C.G. Grefenstette, Trustee



                               By:     /s/ THOMAS G. BIGLEY
                                       ---------------------------
                                       Thomas G. Bigley, Trustee



                               HENRY L. HILLMAN, ELSIE HILLIARD
                               HILLMAN AND C.G. GREFENSTETTE,
                               TRUSTEES OF THE HENRY L. HILLMAN
                               TRUST U/A DATED NOVEMBER 18, 1985



                               By:     /s/ C.G. GREFENSTETTE
                                       ---------------------------
                                       C.G. Grefenstette, Trustee
<PAGE>   2
SCHEDULE 13D                                                 PAGE 31 OF 42 PAGES





                               WILMINGTON SECURITIES, INC.



                               By:     /s/ DARLENE CLARKE
                                       ---------------------------
                                       Darlene Clarke
                               Title:  Vice President, Chief Financial Officer
                                        and Treasurer



                               /s/ WILLIAM L. COLLINS, III
                               ---------------------------
                               William L. Collins, III



                               /s/ HARRY L. BROCK, JR.
                               ---------------------------
                               Harry L. Brock, Jr.



                               /s/ SUZANNE S. BROCK
                               ---------------------------
                               Suzanne S. Brock


                               /s/ RONALD V. APRAHAMIAN
                               ---------------------------
                               Ronald V. Aprahamian


                               /s/ FRANCIS A. MARTIN, III
                               ---------------------------
                               Francis A. Martin, III


                               /s/ RAY RUSSENBERGER
                               ---------------------------
                               Ray Russenberger


                               /s/ ELLIOT H. SINGER
                               ---------------------------
                               Elliot H. Singer
<PAGE>   3
SCHEDULE 13D                                                 PAGE 32 OF 42 PAGES




                             UBS CAPITAL LLC




                             By:   /s/ MICHAEL GREENE
                                ---------------------------
                                       Michael Greene


                             By:   /s/ MARC A. UNGER
                                ---------------------------
                                       Marc A. Unger

<PAGE>   1
SCHEDULE 13D                                                 PAGE 33 OF 42 PAGES


                                  EXHIBIT 99.2
                      Executive Officers and Directors of
                          Wilmington Securities, Inc.*

<TABLE>
<CAPTION>
Name and Address                                           Position
- ----------------                                           --------
<S>                                                        <C>
Lawrence M. Wagner                                         President
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Darlene Clarke                                             Vice President, Chief Financial Officer, Treasurer
824 Market Street, Suite 900                               and Director
Wilmington, Delaware 19801

Lario M. Marini                                            Senior Vice President and Director
Rodney Square North
Wilmington, Delaware 19801

Richard H. Brown                                           Assistant Vice President and Assistant Secretary
824 Market Street, Suite 900
Wilmington, Delaware 19801

H. Vaughn Blaxter, III                                     Secretary
1900 Grant Building
Pittsburgh, Pennsylvania 15219

Jody B. Cosner                                             Assistant Secretary
824 Market Street, Suite 900
Wilmington, Delaware 19801

Joan E. Bachner                                            Assistant Treasurer
824 Market Street, Suite 900
Wilmington, Delaware 19801

Charles H. Bracken, Jr.                                    Assistant Secretary and Assistant Treasurer
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Russell W. Ayres, III                                      Director
1900 Grant Building
Pittsburgh, Pennsylvania 15219
</TABLE>



 *All officers and directors of Wilmington Securities, Inc. are U.S. citizens.
<PAGE>   2
SCHEDULE 13D                                                 PAGE 34 OF 42 PAGES


                      Executive Officers and Directors of
                              The Hillman Company*


<TABLE>
<S>                                                        <C>
Henry L. Hillman                                           Chairman of the Executive Committee and Director
2000 Grant Building
Pittsburgh, Pennsylvania 15219

C.G. Grefenstette                                          Chairman of the Board and Director
2000 Grant Building                                        
Pittsburgh, Pennsylvania 15219

Lawrence M. Wagner                                         President, Chief Executive Officer and Director
2000 Grant Building
Pittsburgh, Pennsylvania 15219

H. Vaughan Blaxter, III                                    Vice President, Secretary, General Counsel and
1900 Grant Building                                        Director
Pittsburgh, Pennsylvania 15219

Mark J. Laskow                                             Vice President, Assistant Secretary and Director
1900 Grant Building
Pittsburgh, Pennsylvania 15219

Carol J. Cusick Riley                                      Vice President, Associate General Counsel and
1900 Grant Building                                        Assistant Secretary
Pittsburgh, Pennsylvania 15219

Anthony J. Burlando                                        Vice President - Risk Management
1900 Grant Building
Pittsburgh, Pennsylvania 15219

James R. Philp                                             Vice President - Personnel and Administration
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Richard M. Johnston                                        Vice President - Investments
2000 Grant Building
Pittsburgh, Pennsylvania 15219

John W. Hall                                               Vice President - Accounting and Information Services
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Timothy O. Fisher                                          Vice President
1900 Grant Building
Pittsburgh, Pennsylvania 15219
</TABLE>

*All officers and directors of The Hillman Company are U.S. citizens.
<PAGE>   3
SCHEDULE 13D                                                 PAGE 35 OF 42 PAGES


                      Executive Officers and Directors of
                        The Hillman Company* (continued)

<TABLE>
<S>                                                        <C>
Bruce I. Crocker                                           Vice President - Taxes
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Denis P. McCarthy                                          Vice President
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Charles H. Bracken, Jr.                                    Treasurer
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Cornelius Conley                                           Controller - Corporate
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Mark M. Poljak                                             Controller - Taxes
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Jeffrey A. Davis                                           Assistant Treasurer
2000 Grant Building
Pittsburgh, Pennsylvania 15219

D. Richard Roesch                                          Assistant Treasurer
1800 Grant Building
Pittsburgh, Pennsylvania 15219

Mary Black Strong                                          Assistant Treasurer
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Michael S. Adamycyk                                        Assistant Secretary and Assistant Treasurer
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Elsie H. Hillman                                           Director
2000 Grant Building
Pittsburgh, Pennsylvania 15219

Juliet Lea Hillman Simonds                                 Director
1800 Grant Building
Pittsburgh, Pennsylvania 15219
</TABLE>

*All officers and directors of The Hillman Company are U.S. citizens.

<PAGE>   1
SCHEDULE 13D                                                 PAGE 36 OF 42 PAGES


                                  EXHIBIT 99.3

Set forth below is Item 2 from the statement on Schedule 13D filed by UBS
Capital LLC on December 27, 1996, and Appendix 1 thereto, as revised.


ITEM 2. IDENTITY AND BACKGROUND

     (a) This Statement constitutes the filing on Schedule 13D by UBS Capital
LLC, a Delaware limited liability company ("UBS"). A list of the directors and
executive officers of UBS appears on Appendix 1.

     UBS Securities LLC, a Delaware limited liability company ("UBS
Securities") owns 77% of the membership interests of UBS. Union Bank of
Switzerland, a company organized under the laws of Switzerland ("Union Bank of
Switzerland") owns 95% of the membership interests of UBS Securities. Union
Bank of Switzerland is principally engaged in the general banking business and
UBS Securities is principally engaged in the securities and investment banking
businesses. A list of the managers and executive officers of UBS Securities and
the directors and executive officers of Union Bank of Switzerland appears on
Appendix 1.

     (b) The address of the principal business office of UBS is as follows:

     Reporting Person          Address

     UBS Capital LLC           299 Park Avenue
                               New York, New York 10171

     The address of each of the managers and executive officers of UBS is c/o
UBS Capital LLC, 299 Park Avenue, New York, New York 10171. The address of
each of the managers and executive officers of UBS Securities is c/o UBS
Securities LLC, 299 Park Avenue, New York, New York 10171. The address of each
of the directors and executive officers of Union Bank of Switzerland is c/o
Union Bank of Switzerland, Bahnhofstrasse 45, 8021 Zurich, Switzerland.

     (c) The present principal occupation or employment of each of the managers
and executive officers of each of UBS and UBS Securities and each of the
directors and executive officers of Union Bank of Switzerland are set forth on
Appendix 1.

     (d) During the past five years, neither UBS, UBS Securities nor Union
Bank of Switzerland nor, to the knowledge of UBS, any of the executive
officers or managers of UBS or UBS Securities or any of the executive officers
or directors of Union Bank of Switzerland, has been convicted in a criminal
proceeding (excluding traffic violations and similar misdemeanors).

     (e) During the past five years, neither UBS, UBS Securities nor Union
Bank of Switzerland nor, to the knowledge of UBS, any of the executive
officers or managers of UBS or UBS Securities or the executive officers or
directors of Union Bank of Switzerland has been a party to a civil proceeding
of a judicial or administrative body of competent jurisdiction as a result of
which such person was or is subject to a judgment, decree or final order
enjoining future violations of, or prohibiting or mandating activities subject
to, federal and state securities laws or finding any violation with respect to
such laws.

     (f) Each of UBS and UBS Securities is a Delaware limited liability
company. To the knowledge of UBS, each executive officer and manager of each
of UBS and UBS Securities is a citizen of the United States, except for Pierre
de Weck, a member of the Board of Managers of UBS Securities, who is a citizen
of Switzerland. Union
<PAGE>   2
SCHEDULE 13D                                                 PAGE 37 OF 42 PAGES


Bank of Switzerland is a bank organized under the laws of Switzerland. To the
knowledge of UBS, none of the executive officers and directors of Union Bank of
Switzerland are citizens of the United States.
<PAGE>   3
SCHEDULE 13D                                                 PAGE 38 OF 42 PAGES


                                   Appendix 1
                       Executive Officers and Managers of
                                UBS Capital LLC

                               BOARD OF MANAGERS



                               Richard C. Capone
                               Charles J. Delaney
                              Robert C. Dinerstein
                              Justin S. Maccarone

                                    OFFICERS




<TABLE>
<CAPTION>
Name and Address                          Position
- ----------------                          --------
<S>                                       <C>
Charles J. Delaney                        President and Chief Executive Officer
Robert C. Dinerstein                      Senior Managing Director and Secretary
Michael Greene                            Managing Director
Justin S. Maccarone                       Managing Director
David Daniels                             Managing Director
George A. Duarte                          Managing Director
Charles Santos-Buch                       Managing Director
Marc Unger                                Chief Financial Officer
James A. Breckenridge                     Vice President
Renata Jacobson                           Vice President
Jeffrey W. Wald                           Vice President
James A. Breckenridge                     Vice President
Ruth Webster                              Assistant Treasurer
David Drabik                              Assistant Treasurer
Sandra Costin                             Assistant Secretary
Barbara A. Blanck                         Assistant Secretary
</TABLE>

                       Executive Officers and Managers of
                               UBS Securities LLC


                               BOARD OF MANAGERS

                                Richard C. Capone
                                 Pierre de Weck
                                 John P. Costas
                                 Marc K. Suvall

                               EXECUTIVE OFFICERS



<PAGE>   4
SCHEDULE 13D                                                 PAGE 39 OF 42 PAGES



<TABLE>
   <S>                                             <C>
   Capone, Richard C.                              President
   Bozian, Alan G.                                 Senior Managing Director
   Canel, Daniel J.                                Senior Managing Director
   Costas, John P.                                 Senior Managing Director
   Goldstein, A. Ramy                              Senior Managing Director
   Rodman, Andrew O.                               Senior Managing Director
   Rosasco, Mark                                   Senior Managing Director
   Snow, Michael                                   Senior Managing Director
   Suvall, Marc K.                                 Senior Managing Director
   Ahearn, Michael                                 Managing Director
   Ajello, James A.                                Managing Director
   Ali, Mir Syed                                   Managing Director
   Allen, Michael J.                               Managing Director
   Anikewich, Stephen                              Managing Director
   Antolini, Michael R.                            Managing Director
   Apfel, Ronny I.                                 Managing Director
   Barbian, Paul                                   Managing Director
   Barrett, Richard James                          Managing Director
   Benjamin, Jeffrey D.                            Managing Director
   Botts, Theodore                                 Managing Director
   Brennan, Martin A.                              Managing Director
   Brown, John                                     Managing Director
   Burns, Gordon M.                                Managing Director
   Burstein, Alan N.                               Managing Director
   Cantalini, James                                Managing Director
   Cardew, Piers A.                                Managing Director
   Chafetz, Randall C.                             Managing Director
   Clement, Helen                                  Managing Director
   Cohen, Jonathan                                 Managing Director
   Cooke, John                                     Managing Director
   Copeland, James R.                              Managing Director and Secretary
   Criswell, Christopher                           Managing Director
   Croonenberghs, Olivier                          Managing Director
   Cucchissi, Paul G.                              Managing Director
   Cutillo, Thomas J.                              Managing Director
   Daniels, David S.                               Managing Director
   Daum, Robert C.                                 Managing Director
   DeVerna, Robert J.                              Managing Director
   Donahue, Michael                                Managing Director
   Donatelli, Mike M.                              Managing Director
   Dorsey, Michael                                 Managing Director
   Doyle, Lawrence                                 Managing Director
   Dudack, Gail                                    Managing Director
   Dysenchuk, David                                Managing Director
   Edens, Wesley                                   Managing Director
   Ellman, Mark                                    Managing Director
   Fennebresque, Kim S.                            Managing Director
   Feuille, James                                  Managing Director
   Finnell, Michael H.                             Managing Director
   Finnerty, Kevin                                 Managing Director
   Forbes, Geraldo de Figueiredo                   Managing Director
   Francis, Mark C.                                Managing Director
   Frieman, Adam                                   Managing Director
   Frumberg, Charles                               Managing Director
   Gamarci, Jorge L.                               Managing Director
   Ganser, Terrance                                Managing Director
   Gebhardt, Bruce                                 Managing Director
   Ginsberg, Alan                                  Managing Director
   Gomez, Modesto                                  Managing Director
   Gonye, Lori                                     Managing Director
   Gould, Andrew                                   Managing Director
   Grace, Howard Eden                              Managing Director
   Grant, Peter M.                                 Managing Director
</TABLE>
<PAGE>   5
SCHEDULE 13D                                                 PAGE 40 OF 42 PAGES


<TABLE>
   <S>                                             <C>
   Gray, Donald M.                                 Managing Director
   Grayson, Matthew                                Managing Director
   Gunther, Nicholas                               Managing Director
   Hall, Carey                                     Managing Director
   Handjinicolaou, George                          Managing Director
   Hanley, Thomas H.                               Managing Director
   Harnik, Peter L.                                Managing Director
   Hatch, Edward T.                                Managing Director
   Hawkins, Brett                                  Managing Director
   Hermoso, Rolando                                Managing Director
   Holtz, Marc                                     Managing Director
   Hradsky, Gregory T.                             Managing Director
   Hutchins, Michael T.                            Managing Director
   Imholz, Alfred                                  Managing Director
   Kaestli, Urs                                    Managing Director
   Kalal, David                                    Managing Director
   Kantowitz, Robert                               Managing Director
   Karl, Kenneth J.                                Managing Director
   Kauffman, Robert                                Managing Director
   Kaye, Joan B.                                   Managing Director
   Kenney, David A.                                Managing Director
   Klimley, Brooks J.                              Managing Director
   Knight, Parker W.                               Managing Director
   Krohn, Lawrence D.                              Managing Director
   Kyle, Donald B.                                 Managing Director
   Lefever, David M.                               Managing Director
   Levy, Christopher                               Managing Director
   Lewis, Meriwether F.                            Managing Director
   Lilley, Gary C.                                 Managing Director
   Lisboa, Jose Rafael Nunes                       Managing Director
   Long, Martin                                    Managing Director
   Lynch, Gary                                     Managing Director
   MacCallum, David H.                             Managing Director
   Mahaffy, Michael T.                             Managing Director
   Martinez, Amalia                                Managing Director
   Martini, Greg F.                                Managing Director
   Mason, Jason K.                                 Managing Director
   McCulley, Paul                                  Managing Director
   McKenna, Margaret                               Managing Director
   McLendon, Charles                               Managing Director
   Meltzer, Linda B.                               Managing Director
   Morgan, Tim J.                                  Managing Director
   Muller, Andrea K.                               Managing Director
   Nardone, Randal                                 Managing Director
   Nau, Robert Andrew                              Managing Director
   Navarro, Samuel E.                              Managing Director
   Neely, K.Dean                                   Managing Director
   Nolan, Jr., Robert B.                           Managing Director
   Nygaard, Erik P.                                Managing Director
   Okun, Robert B.                                 Managing Director
   Parsons, Robert                                 Managing Director
   Pedhazur, Hadar                                 Managing Director
   Perkins, Tod D.                                 Managing Director
   Pittarelli, Ernest A.                           Managing Director
   Politzer, Gabriel                               Managing Director
   Price, John                                     Managing Director
   Quinn, Norman P.                                Managing Director
   Reed, Sharon                                    Managing Director
   Reilly, Michael J.                              Managing Director
   Rye, Manit                                      Managing Director
   Santos-Buch, Charlie                            Managing Director
   Schafrann, Richard                              Managing Director
   Schwartz, Charles                               Managing Director
   Schwartz, Simeon                                Managing Director
   Selig, Stefan                                   Managing Director
   Sipp, John                                      Managing Director
   Skwarek, Lucia                                  Managing Director
   Smith, Gerard L.                                Managing Director
   Spooner, Roger                                  Managing Director
   Stachnik, James J.                              Managing Director
   Steuerer, Michael G.                            Managing Director

</TABLE>

<PAGE>   6
SCHEDULE 13D                                                 PAGE 41 OF 42 PAGES

<TABLE>
   <S>                                             <C>
   Sturtevant, Joseph                              Managing Director
   Sunderland, Donald N.                           Managing Director
   Tamburro, Gerald                                Managing Director
   Thalheim, Neil                                  Managing Director
   Thaw, Mitchell A.                               Managing Director
   Velastegui, Eric                                Managing Director
   Wade, Stephen J.                                Managing Director
   Ward, Susan                                     Managing Director
   Wells Jr., Edwin                                Managing Director
   White, Brenda                                   Managing Director
   Whitworth, David T.                             Managing Director
   Widas, Bruce J.                                 Managing Director
   Wieczorek, Michael B.                           Managing Director
   Williams, W. Daniel                             Managing Director
   Wilson, Timothy                                 Managing Director
   Wilton, Pamela                                  Managing Director
   Wolf, Robert                                    Managing Director
   Wolfe, Stephen W.                               Managing Director
   Woolfrey Sr., William James                     Managing Director
   Yearly, Peter                                   Managing Director
   Zimmer, Janet                                   Managing Director and Assistant Secretary
</TABLE>

                      Executive Officers and Directors of
                           UNION BANK OF SWITZERLAND
                               BOARD OF DIRECTORS




<TABLE>
<S>                                         <C>
Robert Studer*                              Schonenberg, Chairman

Hans Heckmann*                              Schlieren, Vice Chairman

Markus Kundig*                              Zug, Vice Chairman, Publisher

Marc C. Cappis                              Herisau, Managing Director of Huber + Suhner Ltd., Herisau
                                            AR/Pfaffikon ZH

Fritz Fahrni                                Islikon, President of the Corporate Executive Management of Sulzer
                                            Ltd., Winterthur

Kurt E. Feller                              Wollerau, Managing Director and Chief Executive Officer of Rieter
                                            Holding Ltd., Winterthur

Charles R. Firmenich                        Genthod, Vice Chairman of the Board of Firmenich (International)
                                            SA, Geneva

Hannes Goetz*                               Ruschlikon, Chairman of the Board of Swissair, Zurich Airport

Reto Mengiardi                              Chur, Attorney and Notary Public
</TABLE>

<PAGE>   7
SCHEDULE 13D                                                 PAGE 42 OF 42 PAGES


<TABLE>
<S>                                         <C>
Rolf A. Meyer*                              Basle, Chief Financial Officer and Member of the Executive
                                            Committee of Ciba-Geigy Ltd., Basle

Anne-Lise Monnier-Blaile                    Gland, Pharmacist and Chairwoman of the Board of Ofac, Geneva

Andreas Reinhart*                           Winterthur, Chairman of the Board of Volkart Brothers Holding Ltd.,
                                            Winterhur

Maria Reinshagen                            Zurich, Vice President of Christie's (International) SA Switzerland

Rene K. Ruepp                               Pfaffhausen, Chairman of the Board and Chief Executive Officer of
                                            Forbo Holding SA, Eglisau

Alfred N. Schindler*                        Hergiswil, Vice Chairman and Chief Executive Officer of Schindler
                                            Holding AG, Hergiswil

Johann-Niklaus Schneider-                   Langenthal, Chairman of the Board and Managing Director
Ammann                                      of the Ammann Group, Langenthal

Manfred Zobl                                Ruschlikon, Chairman of the Corporate Executive Board of Swiss
                                            Life/Rentenanstalt, Zurich

Franz Lusser                                Zug, Secretary of Union Bank of Switzerland
</TABLE>


*Member of the Board of Directors Committee




                           UNION BANK OF SWITZERLAND
                             GROUP EXECUTIVE BOARD



<TABLE>
          <S>                              <C>
          Mathis Cabiallavetta             President of the Group Executive Board
          Werner Bonadurer                 Executive Vice President
          Arthur Decurtins                 Executive Vice President
          Ulrich Grete                     Executive Vice President
          Felix Fischer                    Executive Vice President
          Stephan Haeringer                Executive Vice President
          Karl Janjori                     Executive Vice President
          Pierre de Weck                   Executive Vice President
</TABLE>


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