Sources |
- [S123] Iowa, Births and Christenings Index, 1800-1999, Ancestry.com, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2011;), Database online.
Record for Emil Martin August Hopp
- [S6] Public Member Trees, Ancestry.com, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2006;), Database online.
Record for Wilhelmina Dorothea Jahn
- [S70] 1940 United States Federal Census, Ancestry.com, (Name: Ancestry.com Operations, Inc.; Location: Provo, UT, USA; Date: 2012;), Database online. Year: 1940; Census Place: Hanover, Crawford, Iowa; Roll: T627_1152; Page: 2A; Enumeration District: 24-11.
Record for Emil Hopp
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