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- [S119333037] Ancestry.com, Iowa, State Census Collection, 1836-1925, (Ancestry.com Operations, Inc.).
- [S119333036] Ancestry.com, 1920 United States Federal Census, (Ancestry.com Operations, Inc.), Year: 1920; Census Place: Vernon, Humboldt, Iowa; Roll: T625_494; Page: 14B; Enumeration District: 162; Image: 1166.
- [S119332501] Ancestry.com, 1910 United States Federal Census, (Ancestry.com Operations Inc), Year: 1910; Census Place: Springvale, Humboldt, Iowa; Roll: T624_406; Page: 6A; Enumeration District: 0147; FHL microfilm: 1374419.
- [S119332468] Ancestry Family Trees, (Online publication - Provo, UT, USA: Ancestry.com. Original data: Family Tree files submitted by Ancestry members.), Ancestry Family Tree.
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