"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MNMY-4N1 : accessed 17 July 2018), Robert D Cobbe in household of Cushing H Cobbe, Philadelphia Ward 42, Philadelphia, Pennsylvania, United States; citing ED 1581, sheet 13B, line 57, family 5, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1643; FHL microfilm 1,821,643.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X739-DFY : accessed 17 July 2018), Robert D Cobb in household of Ruth M Cobb, Highland Park, Wayne, Michigan, United States; citing enumeration district (ED) ED 976, sheet 2B, line 62, family 42, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1073; FHL microfilm 2,340,808.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KHM4-YMK : accessed 17 July 2018), Robert Cobb in household of Ruth Cobb, Tract 905, Highland Park, Highland Park City, Wayne, Michigan, United States; citing enumeration district (ED) 82-133, sheet 3A, line 20, family 54, 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 1831.
"United States Social Security Death Index," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:JTPS-Z2W : 20 May 2014), Robert Cobb, Nov 1983; citing U.S. Social Security Administration, Death Master File, database (Alexandria, Virginia: National Technical Information Service, ongoing).
additional records omitted: privacy concerns. ~ Jones-39993 20:44, 29 June 2023 (UTC)
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