| Frank Ulrich HECKENDORF |
| Frank Ulrich HECKENDORF | |
| B: | 13 Oct 1861 |
| Watertown, Jefferson County, Wisconsin | |
| D: | 31 Jul 1954 |
| Stewartsville, DeKalb County, Missouri | |
| Mary Louise SCHMIDT |
| Mary Louise SCHMIDT | |
| B: | 10 Nov 1862 |
| Salt Lake City, Salt Lake County, Utah | |
| D: | 27 Aug 1937 |
| Washington Twp., DeKalb County, Missouri | |
| Louise (HECKENDORF) |
| Louise (HECKENDORF) | |
| D: | Yes, date unknown |
| Christian HECKENDORF |
| Christian HECKENDORF | |
| D: | Yes, date unknown |