1887-1959
| Erie Orrin Leonard | |
| B: | 29 Sep 1887 |
| Watrousville, Tuscola, Michigan, USA | |
| D: | 30 Sep 1959 |
1891-1893
| Howard Leonard | |
| B: | 7 Apr 1891 |
| D: | 25 Mar 1893 |
1864-1930
| Margaret Elizabeth McComb | |
| B: | 1864 |
| Brockville, , Ontario, CAN | |
| D: | 1930 |
| , , Michigan, USA | |
1856-1942
| Eugene Warner Leonard | |
| B: | 31 May 1856 |
| Saybrook, Ashtabula, Ohio, USA | |
| D: | 1942 |
| , , Michigan, USA | |