| Notes |
- "United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MWBJ-Z8X : accessed 17 August 2020), Erna Rosentreter in household of Emil Rosentreter, Dora, Otter Tail, Minnesota, United States; citing ED 132, sheet 2A, line 19, family 24, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 847; FHL microfilm 1,820,847.
- "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X38K-X5Q : accessed 17 August 2020), Erna E Rosentreter in household of Emeil Rosentreter, Dora, Otter Tail, Minnesota, United States; citing enumeration district (ED) ED 22, sheet 2A, line 18, family 30, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1111; FHL microfilm 2,340,846.
- "United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KSVT-LJS : 25 January 2020), Erma C Rosentrater in household of Amel Rosentrater, Dora Township, Otter Tail, Minnesota, United States; citing enumeration district (ED) 56-22, sheet 6B, line 66, family 120, 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 1945.
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| Children |
| | 1. Harry Emil Rosentreter, b. 2 Feb 1920, Minnesota, USA , d. 6 Dec 1985, Otter Tail County, Minnesota, USA (Age 65 years) [Birth] |
| | 2. Adeline Mathilda Rosentreter, b. 16 Jan 1921, Vergas, Otter Tail County, Minnesota, USA , d. 2 Sep 2009, Detroit Lakes, Becker County, Minnesota, USA (Age 88 years) [Birth] |
| | 3. Alvin Louis Rosentreter, b. 12 Jun 1922, Dora Township, Otter Tail County, Minnesota, USA , d. 12 Feb 2010, Vergas, Otter Tail County, Minnesota, USA (Age 87 years) [Birth] |
| | 4. Gertrude Ann Rosentreter, b. 18 Nov 1923, Otter Tail County, Minnesota, USA , d. 13 Nov 2012, Detroit Lakes, Becker County, Minnesota, USA (Age 88 years) [Birth] |
| | 5. Viola Anna Rosentreter, b. 7 May 1925, Otter Tail County, Minnesota, USA , d. 26 Jun 1925, Otter Tail County, Minnesota, USA (Age 0 years) [Birth] |
| | 6. Betty Amanda Rosentreter, b. 26 Jun 1926, Dora Township, Otter Tail County, Minnesota, USA , d. 6 Dec 2024, Fargo, Cass County, North Dakota, USA (Age 98 years) [Birth] |
| | 7. Bennie August Rosentreter |
| | 8. Dorothy Gladyce Rosentreter, b. 17 Jun 1932, Dora Township, Otter Tail County, Minnesota, USA , d. 2 Mar 2012, Perham, Otter Tail County, Minnesota, USA (Age 79 years) [Birth] |
| | 9. Violet Evelyn Rosentreter, b. 29 Nov 1933, Otter Tail County, Minnesota, USA , d. 8 Aug 1986, Otter Tail County, Minnesota, USA (Age 52 years) [Birth] |
| | 10. Melvin Arthur Rosentreter, b. 21 Jun 1937, Dora Township, Otter Tail County, Minnesota, USA , d. 8 Jan 2014, Perham, Otter Tail County, Minnesota, USA (Age 76 years) [Birth] |
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