| Notes |
- "Wisconsin State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMQV-LG7 : 4 April 2020), Fred Rosentraler, Omro, Winnebago, Wisconsin; citing p. 383, line 29, State Historical Society, Madison; FHL microfilm 1,020,989.
- "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MPK6-MKN : accessed 19 August 2020), Julius Rosentreter in household of Fred Rosentreter, Oshkosh Ward 12, Winnebago, Wisconsin, United States; citing enumeration district (ED) ED 153, sheet 14A, family 223, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1744; FHL microfilm 1,375,757.
- "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MF2N-SZB : accessed 24 July 2020), Fred Rosentreter, Oshkosh Ward 12, Winnebago, Wisconsin, United States; citing ED 184, sheet 9A, line 50, family 167, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 2023; FHL microfilm 1,822,023.
- Poznan Project
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