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KOSCINSKY, CHARLES J. was born 27 February 1904, received Social Security number 432-05-9553 (indicating Arkansas) and, Death Master File says, died 20 June 1989
Source: Death Master File (public domain). Check
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KOSCINSKY, CHESTER was born 10 July 1906, received Social Security number 170-09-2753 (indicating Pennsylvania) and, Death Master File says, died December 1953
Source: Death Master File (public domain). Check
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KOSCINSKY, ELSIE F. was born 17 December 1907, received Social Security number 567-30-6875 (indicating California) and, Death Master File says, died 21 September 1990
Source: Death Master File (public domain). Check
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