<PAGE> PAGE 1
000 B000000 09/30/95
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 FUND DISTRIBUTORS, 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 16
020 A000002 DUNLEVY & COMPANY
020 B000002 13-2919975
020 C000002 9
020 A000003 ROULSTON RESEARCH CORP.
020 B000003 34-0921514
020 C000003 5
020 A000004 TUCKER ANTHONY
020 B000004 13-1918153
020 C000004 5
020 A000005 LATTICE TRADING
020 B000005 00-0000000
020 C000005 5
020 A000006 C.J. LAWRENCE & SONS
020 B000006 13-2730828
020 C000006 5
020 A000007 PIPER, JAFFRAY & HOPWOOD
020 B000007 41-0953246
020 C000007 4
020 A000008 SUTRO & CO. INCORPORATED
020 B000008 94-1704902
020 C000008 4
020 A000009 SALOMON BROTHERS INC.
020 B000009 13-3082694
020 C000009 4
020 A000010 CHICAGO CORPORATION
020 B000010 36-3073117
020 C000010 3
021 000000 116
022 A000001 CHEMICAL BANK
022 B000001 13-4994650
022 C000001 31498
022 D000001 0
022 A000002 PRUDENTIAL SECURITIES
022 B000002 22-2347336
022 C000002 21560
022 D000002 298
<PAGE> PAGE 3
022 A000003 HONG KONG SHANGHAI BANK
022 B000003 00-0000000
022 C000003 18582
022 D000003 0
022 A000004 CS FIRST BOSTON
022 B000004 13-5659485
022 C000004 16980
022 D000004 244
022 A000005 LEHMAN BROS.
022 B000005 13-2518466
022 C000005 11632
022 D000005 2193
022 A000006 CARROLL MC ENTEE & MCGINLEY
022 B000006 13-2650272
022 C000006 12622
022 D000006 0
022 A000007 NATIONSBANK
022 B000007 75-0520130
022 C000007 9265
022 D000007 0
022 A000008 BANK OF AMERICA
022 B000008 94-1687665
022 C000008 6327
022 D000008 597
022 A000009 MORGAN STANLEY & CO.
022 B000009 13-2655998
022 C000009 633
022 D000009 696
022 A000010 GOLDMAN SACHS & COMPANY
022 B000010 13-5108880
022 C000010 1200
022 D000010 0
023 C000000 131672
023 D000000 4572
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 0
028 A02AA00 0
028 A03AA00 0
028 A04AA00 282
028 B01AA00 0
028 B02AA00 0
028 B03AA00 0
<PAGE> PAGE 4
028 B04AA00 40
028 C01AA00 0
028 C02AA00 0
028 C03AA00 0
028 C04AA00 121
028 D01AA00 0
028 D02AA00 0
028 D03AA00 0
028 D04AA00 1396
028 E01AA00 0
028 E02AA00 0
028 E03AA00 0
028 E04AA00 0
028 F01AA00 0
028 F02AA00 0
028 F03AA00 0
028 F04AA00 587
028 G01AA00 0
028 G02AA00 0
028 G03AA00 0
028 G04AA00 2426
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 44
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
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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 42142
071 B00AA00 35775
071 C00AA00 28580
071 D00AA00 125
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072DD01AA00 224
072DD02AA00 0
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<PAGE> PAGE 8
073 A02AA00 0.0000
073 B00AA00 0.0000
073 C00AA00 0.0000
074 A00AA00 94
074 B00AA00 0
074 C00AA00 300
074 D00AA00 0
074 E00AA00 0
074 F00AA00 35193
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074 R03AA00 0
074 R04AA00 20
074 S00AA00 0
074 T00AA00 35842
074 U01AA00 3024
074 U02AA00 0
074 V01AA00 10.12
074 V02AA00 0.00
074 W00AA00 0.0000
074 X00AA00 21
074 Y00AA00 0
075 A00AA00 0
075 B00AA00 29570
076 00AA00 0.00
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
077 J000000 N
077 K000000 N
077 L000000 N
077 M000000 N
077 N000000 N
077 O000000 N
<PAGE> PAGE 9
077 P000000 N
077 Q010000 Y
077 Q020000 N
077 Q030000 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
086 A01AA00 0
086 A02AA00 0
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024 000100 N
SIGNATURE JAMES O. YOST
TITLE ASSISTANT TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FINANCIAL STATEMENTS OF MFS UNION
STANDARD EQUITY FUND AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<NAME> MFS UNION STANDARD EQUITY FUND
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> SEP-30-1995
<PERIOD-END> SEP-30-1995
<INVESTMENTS-AT-COST> 29,605,091
<INVESTMENTS-AT-VALUE> 35,492,498
<RECEIVABLES> 2,672,181
<ASSETS-OTHER> 19,399
<OTHER-ITEMS-ASSETS> 94,038
<TOTAL-ASSETS> 38,278,116
<PAYABLE-FOR-SECURITIES> 2,414,567
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 21,637
<TOTAL-LIABILITIES> 2,436,204
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 28,923,445
<SHARES-COMMON-STOCK> 3,023,850
<SHARES-COMMON-PRIOR> 2,301,171
<ACCUMULATED-NII-CURRENT> 394,906
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 636,154
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 5,887,407
<NET-ASSETS> 35,841,912
<DIVIDEND-INCOME> 704,104
<INTEREST-INCOME> 58,430
<OTHER-INCOME> 0
<EXPENSES-NET> 296,509
<NET-INVESTMENT-INCOME> 466,025
<REALIZED-GAINS-CURRENT> 806,897
<APPREC-INCREASE-CURRENT> 5,900,373
<NET-CHANGE-FROM-OPS> 7,173,295
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 224,465
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 983,045
<NUMBER-OF-SHARES-REDEEMED> 284,399
<SHARES-REINVESTED> 24,033
<NET-CHANGE-IN-ASSETS> 13,657,464
<ACCUMULATED-NII-PRIOR> 153,346
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 170,743
<GROSS-ADVISORY-FEES> 193,107
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 331,457
<AVERAGE-NET-ASSETS> 29,569,628
<PER-SHARE-NAV-BEGIN> 9.64
<PER-SHARE-NII> 0.17
<PER-SHARE-GAIN-APPREC> 2.14
<PER-SHARE-DIVIDEND> 0.10
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0.00
<PER-SHARE-NAV-END> 11.85
<EXPENSE-RATIO> 1.00
<AVG-DEBT-OUTSTANDING> 0
<AVG-DEBT-PER-SHARE> 0
</TABLE>
