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- [S22] 1900 United States Federal Census, Year: 1900; Census Place: Cooper, Monona, Iowa; Page: 5; Enumeration District: 0065; FHL microfilm: 1240449.
- [S24] 1920 United States Federal Census, Year: 1920; Census Place: Mapleton, Monona, Iowa; Roll: T625_503; Page: 13A; Enumeration District: 89.
- [S263] Iowa, Marriage Records, 1880-1940, Iowa Department of Public Health; Des Moines, Iowa; Series Title: Iowa Marriage Records, 1880–1922; Record Type: Textual Records.
- [S266] Iowa, Death Records, 1920-1940, State Historical Society of Iowa; Des Moines, Iowa; Iowa Death Records; Reference Number: 101797050.
- [S2176] U.S., Social Security Applications and Claims Index, 1936-2007.
- [S29] 1910 United States Federal Census, Year: 1910; Census Place: Mapleton, Monona, Iowa; Roll: T624_414; Page: 2B; Enumeration District: 0077; FHL microfilm: 1374427.
- [S442] Iowa, Select Marriages Index, 1758-1996.
- [S446] Iowa, Births and Christenings Index, 1800-1999.
- [S449] Iowa, Delayed Birth Records, 1856-1940, State Historical Society of Iowa; Des Moines, Iowa.
- [S2173] U.S., Find A Grave Index, 1600s-Current.
- [S41] 1930 United States Federal Census, Year: 1930; Census Place: Mapleton, Monona, Iowa; Page: 11A; Enumeration District: 0020; FHL microfilm: 2340404.
- [S463] Hesse, Germany, Lutheran Baptisms, Marriages, and Burials, 1661-1957.
- [S387] Iowa, State Census Collection, 1836-1925.
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