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Antonwicz, Frank was born in 1899 according to a Massachusetts vital record for Holyoke, Volume 485, Page 130.
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ANTONWICZ, STANLEY was born 15 December 1926, received Social Security number 197-18-3890 (indicating Pennsylvania) and, Death Master File says, died October 1969
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ANTONWICZ, STEPHEN M. was born 8 October 1964, received Social Security number 193-50-4978 (indicating Pennsylvania) and, Death Master File says, died 14 October 2010
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