| Male Frank Ulrich Heckendorf |
| Birth | 13 Oct 1861 | Watertown, Jefferson County, Wisconsin |
| Death | 31 Jul 1954 | Stewartsville, DeKalb County, Missouri |
| Burial | 2 Aug 1954 | DeKalb Cemetery, Stewartsville, DeKalb County, Missouri |
| Marriage | ||
| Father | Christian Heckendorf | F1332 Group Sheet | |
| Mother | Louise (Heckendorf) | F1332 Group Sheet | |
| Female Mary Louise Schmidt |
| Birth | 10 Nov 1862 | Salt Lake City, Salt Lake County, Utah |
| Death | 27 Aug 1937 | Washington Twp., DeKalb County, Missouri |
| Burial | 29 Aug 1937 | DeKalb Cemetery, Stewartsville, DeKalb County, Missouri |
| Father | Henry George Schmidt | F1333 Group Sheet | |
| Mother | Louise Risen | F1333 Group Sheet | |