| Male Ervine Patrick McMahon |
| Birth | 18 Oct 1897 | Doylestown, Columbia, Wisconsin, United States |
| Death | 25 Nov 1969 | Madison, Dane County, Wisconsin, United States |
| Burial | 28 Nov 1969 | Sacred Hearts Cemetery, Sun Prairie, Dane, Wisconsin, United States |
| Marriage | 2 Apr 1923 | Columbus, Columbia, Wisconsin, United States |
| Father | Edward F. McMahon | F3712 Group Sheet | |
| Mother | Mary Frawley | F3712 Group Sheet | |
| Female Amanda Bertha May Setz |
| Birth | 9 Jul 1898 | |
| Death | 7 Sep 2003 | Nazareth House, Stoughton, Dane, Wisconsin, United States |
| Burial | ||
| Father | Louis Setz | F3727 Group Sheet | |
| Mother | Anna Herman | F3727 Group Sheet | |
| Male + John Louis McMahon |
| Birth | ||
| Death | ||
| Burial | ||
| Spouse | Joan Marion Wetmore | F3728 | |
| Marriage | ||
| Spouse | Nancy Jeane Chase | F3729 | |
| Marriage | ||