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MORTKOWICZ, CHASKEL was born 15 July 1903, received Social Security number 343-26-0602 (indicating Illinois) and, Death Master File says, died 10 September 1987
Source: Death Master File (public domain). Check
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MORTKOWICZ, ESTHER was born 14 December 1912, received Social Security number 135-48-3617 (indicating New Jersey) and, Death Master File says, died 20 August 2008
Source: Death Master File (public domain). Check
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MORTKOWICZ, HELEN was born 5 August 1914, received Social Security number 340-38-3254 (indicating Illinois) and, Death Master File says, died 25 April 2002
Source: Death Master File (public domain). Check
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MORTKOWICZ, LEON was born 15 March 1912, received Social Security number 153-24-6551 (indicating New Jersey) and, Death Master File says, died April 1979
Source: Death Master File (public domain). Check
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