<PAGE> PAGE 1
000 A000000 03/31/95
000 C000000 0000911637
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 MFS UNION STANDARD TRUST
001 B000000 811-7992
001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003 000000 Y
004 000000 N
005 000000 N
006 000000 N
007 A000000 Y
007 B000000 1
007 C010100 1
007 C020100 MFS UNION STANDARD EQUITY FUND
007 C030100 N
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B00AA01 A
008 C00AA01 801-17352
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02116
011 A00AA01 MFS INVESTOR SERVICES, INC.
011 B00AA01 8-27864
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
012 A00AA01 MFS SERVICE CENTER, INC.
012 B00AA01 84-1316
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02116
013 A00AA01 DELOITTE & TOUCHE
<PAGE> PAGE 2
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
015 A00AA01 STATE STREET BANK AND TRUST COMPANY
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 E01AA01 X
018 00AA00 Y
019 A00AA00 N
019 B00AA00 0
020 A000001 ADAMS HARKNESS & HILL
020 B000001 04-2149932
020 C000001 6
020 A000002 DUNLEVY & COMPANY
020 B000002 13-2919975
020 C000002 5
020 A000003 TUCKER ANTHONY & CO.,INC.
020 B000003 13-1918153
020 C000003 5
020 A000004 LATTICE TRADING
020 B000004 00-0000000
020 C000004 5
020 A000005 PIPER, JAFFRAY & HOPWOOD
020 B000005 41-0953246
020 C000005 4
020 A000006 SUTRO & CO.
020 B000006 94-1704902
020 C000006 4
020 A000007 PAINEWEBBER INCORPORATED
020 B000007 13-2638166
020 C000007 3
020 A000008 C.J. LAWRENCE & SONS
020 B000008 13-2730828
020 C000008 3
020 A000009 NEEDHAM & COMPANY
020 B000009 13-3255839
020 C000009 3
020 A000010 EDGE SECURITIES
020 B000010 00-0000000
020 C000010 2
021 000000 66
022 A000001 PRUDENTIAL SECURITIES
022 B000001 22-2347336
022 C000001 13356
022 D000001 0
022 A000002 CARROLL MC ENTEE & MC GINLEY
022 B000002 13-2650272
022 C000002 12622
022 D000002 0
<PAGE> PAGE 3
022 A000003 CHEMICAL BANK
022 B000003 13-4994650
022 C000003 12397
022 D000003 0
022 A000004 HONG KONG-SHANGHAI BANK
022 B000004 00-0000000
022 C000004 9578
022 D000004 0
022 A000005 CS FIRST BOSTON
022 B000005 13-5659485
022 C000005 8448
022 D000005 244
022 A000006 LEHMAN BROS.
022 B000006 14-2518466
022 C000006 6436
022 D000006 1294
022 A000007 NATIONSBANK
022 B000007 75-0520130
022 C000007 6297
022 D000007 0
022 A000008 BANK OF AMERICA
022 B000008 94-1687665
022 C000008 4928
022 D000008 0
022 A000009 GOLDMAN SACHS & COMPANY
022 B000009 13-5108880
022 C000009 1200
022 D000009 0
022 A000010 MERRILL LYNCH
022 B000010 13-5674085
022 C000010 273
022 D000010 0
023 C000000 76321
023 D000000 1633
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 Y
028 A01AA00 5
028 A02AA00 0
028 A03AA00 0
028 A04AA00 0
028 B01AA00 68
028 B02AA00 0
028 B03AA00 0
<PAGE> PAGE 4
028 B04AA00 10
028 C01AA00 0
028 C02AA00 224
028 C03AA00 0
028 C04AA00 0
028 D01AA00 2000
028 D02AA00 0
028 D03AA00 0
028 D04AA00 215
028 E01AA00 5000
028 E02AA00 0
028 E03AA00 0
028 E04AA00 1
028 F01AA00 2500
028 F02AA00 0
028 F03AA00 0
028 F04AA00 437
028 G01AA00 9573
028 G02AA00 224
028 G03AA00 0
028 G04AA00 663
028 H00AA00 0
029 00AA00 N
030 A00AA00 0
030 B00AA00 0.00
030 C00AA00 0.00
034 00AA00 N
035 00AA00 0
036 B00AA00 0
037 00AA00 N
038 00AA00 0
039 00AA00 N
040 00AA00 Y
041 00AA00 Y
042 A00AA00 0
042 B00AA00 0
042 C00AA00 100
042 D00AA00 0
042 E00AA00 0
042 F00AA00 0
042 G00AA00 0
042 H00AA00 0
043 00AA00 18
044 00AA00 0
045 00AA00 Y
046 00AA00 N
047 00AA00 Y
048 00AA00 0.650
048 A01AA00 0
048 A02AA00 0.000
048 B01AA00 0
<PAGE> PAGE 5
048 B02AA00 0.000
048 C01AA00 0
048 C02AA00 0.000
048 D01AA00 0
048 D02AA00 0.000
048 E01AA00 0
048 E02AA00 0.000
048 F01AA00 0
048 F02AA00 0.000
048 G01AA00 0
048 G02AA00 0.000
048 H01AA00 0
048 H02AA00 0.000
048 I01AA00 0
048 I02AA00 0.000
048 J01AA00 0
048 J02AA00 0.000
048 K01AA00 0
048 K02AA00 0.000
049 00AA00 N
050 00AA00 N
051 00AA00 N
052 00AA00 N
053 A00AA00 Y
053 B00AA00 Y
053 C00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 N
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
055 A00AA00 N
055 B00AA00 N
056 00AA00 Y
057 00AA00 N
058 A00AA00 N
059 00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061 00AA00 5000000
062 A00AA00 N
<PAGE> PAGE 6
062 B00AA00 0.0
062 C00AA00 0.0
062 D00AA00 0.0
062 E00AA00 0.0
062 F00AA00 0.0
062 G00AA00 0.0
062 H00AA00 0.0
062 I00AA00 0.0
062 J00AA00 0.0
062 K00AA00 0.0
062 L00AA00 0.0
062 M00AA00 0.0
062 N00AA00 0.0
062 O00AA00 0.0
062 P00AA00 0.0
062 Q00AA00 0.0
062 R00AA00 0.0
066 A00AA00 Y
066 B00AA00 N
066 C00AA00 N
066 D00AA00 Y
066 E00AA00 N
066 F00AA00 N
066 G00AA00 N
067 00AA00 N
068 A00AA00 N
068 B00AA00 N
069 00AA00 N
070 A01AA00 Y
070 A02AA00 N
070 B01AA00 Y
070 B02AA00 N
070 C01AA00 N
070 C02AA00 N
070 D01AA00 Y
070 D02AA00 N
070 E01AA00 Y
070 E02AA00 N
070 F01AA00 Y
070 F02AA00 N
070 G01AA00 Y
070 G02AA00 N
070 H01AA00 Y
070 H02AA00 N
070 I01AA00 N
070 I02AA00 N
070 J01AA00 Y
070 J02AA00 N
070 K01AA00 Y
070 K02AA00 N
070 L01AA00 N
<PAGE> PAGE 7
070 L02AA00 N
070 M01AA00 N
070 M02AA00 N
070 N01AA00 Y
070 N02AA00 N
070 O01AA00 Y
070 O02AA00 N
070 P01AA00 Y
070 P02AA00 N
070 Q01AA00 N
070 Q02AA00 N
070 R01AA00 N
070 R02AA00 N
071 A00AA00 26663
071 B00AA00 19068
071 C00AA00 24275
071 D00AA00 79
072 A00AA00 6
072 B00AA00 30
072 C00AA00 275
072 D00AA00 0
072 E00AA00 0
072 F00AA00 80
072 G00AA00 0
072 H00AA00 0
072 I00AA00 1
072 J00AA00 2
072 K00AA00 0
072 L00AA00 0
072 M00AA00 2
072 N00AA00 0
072 O00AA00 0
072 P00AA00 0
072 Q00AA00 0
072 R00AA00 5
072 S00AA00 0
072 T00AA00 18
072 U00AA00 2
072 V00AA00 0
072 W00AA00 20
072 X00AA00 130
072 Y00AA00 7
072 Z00AA00 182
072AA00AA00 0
072BB00AA00 666
072CC01AA00 2183
072CC02AA00 0
072DD01AA00 224
072DD02AA00 0
072EE00AA00 0
073 A01AA00 0.1000
<PAGE> PAGE 8
073 A02AA00 0.0000
073 B00AA00 0.0000
073 C00AA00 0.0000
074 A00AA00 92
074 B00AA00 0
074 C00AA00 3197
074 D00AA00 0
074 E00AA00 0
074 F00AA00 31230
074 G00AA00 0
074 H00AA00 0
074 I00AA00 0
074 J00AA00 1903
074 K00AA00 6
074 L00AA00 71
074 M00AA00 0
074 N00AA00 36500
074 O00AA00 3685
074 P00AA00 2
074 Q00AA00 0
074 R01AA00 0
074 R02AA00 0
074 R03AA00 0
074 R04AA00 19
074 S00AA00 0
074 T00AA00 32794
074 U01AA00 3240
074 U02AA00 0
074 V01AA00 10.12
074 V02AA00 0.00
074 W00AA00 0.0000
074 X00AA00 16
074 Y00AA00 0
075 A00AA00 0
075 B00AA00 24430
076 00AA00 0.00
077 A000000 N
078 000000 N
080 A00AA00 NATIONAL UNION INSURANCE CO.
080 B00AA00 ICI MUTUAL
080 C00AA00 60000
081 A00AA00 Y
081 B00AA00 75
082 A00AA00 N
082 B00AA00 0
083 A00AA00 N
083 B00AA00 0
084 A00AA00 N
084 B00AA00 0
085 A00AA00 Y
085 B00AA00 N
<PAGE> PAGE 9
086 A01AA00 0
086 A02AA00 0
086 B01AA00 0
086 B02AA00 0
086 C01AA00 0
086 C02AA00 0
086 D01AA00 0
086 D02AA00 0
086 E01AA00 0
086 E02AA00 0
086 F01AA00 0
086 F02AA00 0
024 000100 Y
025 A000101 GENERAL ELECTRIC CO.
025 B000101 06-1109503
025 C000101 E
025 D000101 617
025 D000102 0
025 D000103 0
025 D000104 0
025 D000105 0
025 D000106 0
025 D000107 0
025 D000108 0
SIGNATURE JAMES O. YOST
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF MFS UNION STANDARD TRUST - EQUITY FUND AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK> 0000911637
<NAME> MFS UNION STANDARD TRUST - EQUITY FUND
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> MAR-31-1995
<INVESTMENTS-AT-COST> 32256713
<INVESTMENTS-AT-VALUE> 34427097
<RECEIVABLES> 1961837
<ASSETS-OTHER> 19101
<OTHER-ITEMS-ASSETS> 92422
<TOTAL-ASSETS> 36500457
<PAYABLE-FOR-SECURITIES> 3685823
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 20460
<TOTAL-LIABILITIES> 3706283
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 31349424
<SHARES-COMMON-STOCK> 3240424
<SHARES-COMMON-PRIOR> 2301170
<ACCUMULATED-NII-CURRENT> 111452
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (837086)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 2170384
<NET-ASSETS> 32794174
<DIVIDEND-INCOME> 274582
<INTEREST-INCOME> 3198
<OTHER-INCOME> 0
<EXPENSES-NET> 122209
<NET-INVESTMENT-INCOME> (182571)
<REALIZED-GAINS-CURRENT> (666343)
<APPREC-INCREASE-CURRENT> 2183350
<NET-CHANGE-FROM-OPS> 1699578
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 224464
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 983045
<NUMBER-OF-SHARES-REDEEMED> 67824
<SHARES-REINVESTED> 24033
<NET-CHANGE-IN-ASSETS> 10609726
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 79532
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 129683
<AVERAGE-NET-ASSETS> 24429553
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.07
<PER-SHARE-GAIN-APPREC> 0.51
<PER-SHARE-DIVIDEND> 0.10
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 10.12
<EXPENSE-RATIO> 1.00
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
