1860 United States Federal Census, Database online. Year: 1860; Census Place: Grand Marsh, Adams, Wisconsin; Roll: ; Page: ; Image: .Record for Elizabeth Decker
1870 United States Federal Census, Database online. Year: 1870; Census Place: Warren, Waushara, Wisconsin; Roll: M593_; Page: ; Image: .Record for Elizabeth Decker
1880 United States Federal Census, Database online. Year: 1880; Census Place: Warren, Waushara, Wisconsin; Roll: T9_1452; Family History Film: 1255452; Page: 373.4000; Enumeration District: 196; Image: .Record for James Decker