<TABLE> <S> <C>
<ARTICLE> 6
<LEGEND>
This schedule contains summary financial information
extracted from Standish, Ayer & Wood Master Portfolio
form N-SAR for the six months ended June 30, 2000
and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
<SERIES>
<NUMBER> 061
<NAME> Standish World High Yield Portfolio
<S>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<INVESTMENTS-AT-COST> 36,004,054
<INVESTMENTS-AT-VALUE> 32,134,034
<RECEIVABLES> 1,399,834
<ASSETS-OTHER> 57,693
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 33,591,561
<PAYABLE-FOR-SECURITIES> 1,907,536
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 97,321
<TOTAL-LIABILITIES> 2,004,857
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 30,406,342
<SHARES-COMMON-STOCK> 0
<SHARES-COMMON-PRIOR> 0
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 1,180,362
<NET-ASSETS> 31,586,704
<DIVIDEND-INCOME> 31,465
<INTEREST-INCOME> 1,541,732
<OTHER-INCOME> 0
<EXPENSES-NET> 38,843
<NET-INVESTMENT-INCOME> 1,534,354
<REALIZED-GAINS-CURRENT> (182,397)
<APPREC-INCREASE-CURRENT> (1,088,938)
<NET-CHANGE-FROM-OPS> 263,019
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 0
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 0
<NUMBER-OF-SHARES-REDEEMED> 0
<SHARES-REINVESTED> 0
<NET-CHANGE-IN-ASSETS> 442,931
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 77,177
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 139,061
<AVERAGE-NET-ASSETS> 31,042,898
<PER-SHARE-NAV-BEGIN> 0.00
<PER-SHARE-NII> 0.00
<PER-SHARE-GAIN-APPREC> 0.00
<PER-SHARE-DIVIDEND> 0.00
<PER-SHARE-DISTRIBUTIONS> 0.00
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 0.00
<EXPENSE-RATIO> 0.25
</TABLE>
