| Male William McMahon |
| Birth | 1870 | |
| Death | 1944 | |
| Burial | ||
| Marriage | ||
| Father | John Edward McMahon | F3667 Group Sheet | |
| Mother | Elizabeth Ann Starr | F3667 Group Sheet | |
| Female Mary Kirley |
| Birth | 1872 | Doylestown, Columbia, Wisconsin, United States |
| Death | Yes, date unknown | |
| Burial | ||
| Father | James Kirley | F3751 Group Sheet | |
| Mother | Mary Fennegan | F3751 Group Sheet | |
| Male Delbert McMahon |
| Birth | Nov 1897 | Delbert Rd, Eau Claire, Eau Claire, Wisconsin, United States |
| Death | ||
| Burial |
| Male Eugene McMahon |
| Birth | 7 Sep 1903 | Pardeeville, Columbia County, Wisconsin, United States |
| Death | ||
| Burial |