| Male William A. McMahon |
| Birth | 9 Jun 1875 | Rio, Columbia County, Wisconsin, United States |
| Death | 24 Oct 1948 | Doylestown, Columbia, Wisconsin, United States |
| Burial | 26 Oct 1948 | St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States |
| Marriage | 1905 | |
| Other Spouse | Ella Tracy | F3798 | |
| Marriage | 1912 | |
| Father | Hugh Peter McMahon | F3794 Group Sheet | |
| Mother | Mary Crinion | F3794 Group Sheet | |
| Female Bridget Cleary |
| Birth | 6 Nov 1878 | , , Wisconsin, United States |
| Death | 17 Jun 1909 | Doylestown, Columbia, Wisconsin, United States |
| Burial | 19 Jun 1909 | St. Patrick's Church Cemetery, Doylestown, Columbia, Wisconsin, United States |
| Father | Thomas Cleary | F3796 Group Sheet | |
| Mother | Catherine Donahoe | F3796 Group Sheet | |
| Female Florence Margaret McMahon |
| Male Russell McMahon |
| Birth | 5 Jul 1912 | |
| Death | 31 Mar 1997 | Baraboo, Sauk, Wisconsin, United States |
| Burial | ||
| Spouse | Leone Bennett | F3797 | |
| Marriage | 18 Sep 1937 | |