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KONCZALSKI, FELIX J. was born 1 June 1909, received Social Security number 339-05-6604 (indicating Illinois) and, Death Master File says, died 11 January 1989
Source: Death Master File (public domain). Check
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KONCZALSKI, HELEN was born 8 December 1906, received Social Security number 360-09-2646 (indicating Illinois) and, Death Master File says, died 22 September 1995
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KONCZALSKI, JOSEPHINE was born 2 October 1916, received Social Security number 364-07-3304 (indicating Michigan) and, Death Master File says, died 21 April 2004
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KONCZALSKI, WALTER was born 2 February 1882, received Social Security number 339-05-5977 (indicating Illinois) and, Death Master File says, died October 1963
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KONCZALSKI, WALTER J. was born 26 September 1914, received Social Security number 378-01-9210 (indicating Michigan) and, Death Master File says, died 14 July 1991
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