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KOPLUN, JOHN was born 22 January 1905, received Social Security number 197-09-7563 (indicating Pennsylvania) and, Death Master File says, died May 1975
Source: Death Master File (public domain). Check
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KOPLUN, MARY was born 28 March 1909, received Social Security number 167-30-2360 (indicating Pennsylvania) and, Death Master File says, died 28 August 2004
Source: Death Master File (public domain). Check
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KOPLUN, PETER was born 21 August 1915, received Social Security number 115-05-1185 (indicating New York) and, Death Master File says, died 5 December 1999
Source: Death Master File (public domain). Check
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KOPLUN, STEPHEN was born 4 May 1907, received Social Security number 180-03-5704 (indicating Pennsylvania) and, Death Master File says, died 18 June 1989
Source: Death Master File (public domain). Check
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