| Notes |
- "Illinois, Cook County Marriages, 1871-1920", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7HG-PXX : 11 March 2018), Richard Rosentreter and Marie Koehnecke Or Koehenke, 13 Aug 1908.
- "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MKZZ-WNS : accessed 19 August 2020), Mary Rosentreter in household of Richard Rosentreter, Chicago Ward 20, Cook, Illinois, United States; citing enumeration district (ED) ED 899, sheet 12A, family 257, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 263; FHL microfilm 1,374,276.
- "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MJ7B-2XD : accessed 19 July 2020), Richard Rosentreter, Chicago Ward 35, Cook (Chicago), Illinois, United States; citing ED 2209, sheet 3A, line 16, family 59, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 355; FHL microfilm 1,820,355.
- "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XSP3-Q84 : accessed 19 July 2020), Richard A Rosentreter, Chicago (Districts 1001-1250), Cook, Illinois, United States; citing enumeration district (ED) ED 1189, sheet 14B, line 75, family 320, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 467; FHL microfilm 2,340,202.
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