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KOSTANIEK, ANDREW was born 7 October 1897, received Social Security number 325-09-5135 (indicating Illinois) and, Death Master File says, died 23 May 1991
Source: Death Master File (public domain). Check
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KOSTANIEK, HELEN was born 1 July 1911, received Social Security number 323-03-5579 (indicating Illinois) and, Death Master File says, died March 1981
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KOSTANIEK, JOHN H. was born 4 March 1912, received Social Security number 323-03-5546 (indicating Illinois) and, Death Master File says, died 21 May 1988
Source: Death Master File (public domain). Check
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KOSTANIEK, SOPHIE was born 18 January 1894, received Social Security number 320-56-5844 (indicating Illinois) and, Death Master File says, died August 1972
Source: Death Master File (public domain). Check
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