↑ "United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JRJL-C2X : 20 May 2014), Emanuel Lacko, Apr 1987; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X4HS-942 : accessed 14 April 2020), Emanuel Lacko, Youngstown, Mahoning, Ohio, United States; citing enumeration district (ED) ED 70, sheet 41A, line 46, family 841, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1846; FHL microfilm 2,341,580.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KW22-C1V : 29 July 2019), Emanuel Lacko, Ward 1, Youngstown City, Youngstown City, Mahoning, Ohio, United States; citing enumeration district (ED) 96-12, sheet 3B, line 48, family 58, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 3267.
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