"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MJ71-RRM : accessed 6 May 2016), Marian Ohlenroth in household of George J Ohlenroth, Chicago Ward 35, Cook (Chicago), Illinois, United States; citing sheet 4B, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,820,356.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KW1T-YYG : accessed 6 May 2016), Marion Melvin in household of Eugene Melvin, Ward 37, Chicago, Chicago City, Cook, Illinois, United States; citing enumeration district (ED) 103-2283, sheet 7A, family 127, NARA digital publication T627 (Washington, D.C.: National Archives and Records Administration, 2012), roll 995.
"Illinois, Cook County Deaths, 1878-1994," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2MD-ZD96 : accessed 6 May 2016), Marion Melvin in entry for George J Ohlenroth, 19 Oct 1944; citing Chicago, Cook, Illinois, United States, source reference , record number , Cook County Courthouse, Chicago; FHL microfilm .
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