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KOROLKOW, HELEN was born 2 December 1905, received Social Security number 326-34-9267 (indicating Illinois) and, Death Master File says, died July 1989
Source: Death Master File (public domain). Check
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KOROLKOW, JULIUS was born 20 June 1895, received Social Security number 163-14-0418 (indicating Pennsylvania) and, Death Master File says, died November 1971
Source: Death Master File (public domain). Check
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KOROLKOW, NICK was born 15 July 1892, received Social Security number 211-09-1143 (indicating Pennsylvania) and, Death Master File says, died February 1977
Source: Death Master File (public domain). Check
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