| 3. Mary B. McMahon |
 |
| B: |
23 Jul 1917 |
| P: |
Eagle Grove, Wright, Iowa, United States |
| D: |
19 Nov 1996 |
| P: |
Geneva, Kane, Illinois, United States |
|
| 6. Melvin Edward McMahon |
|
| B: |
19 Nov 1893 |
| P: |
Fountain Prairie, Columbia, Wisconsin, United States |
| M: |
|
| P: |
|
| D: |
12 Jan 1970 |
| P: |
Blue Island, Cook, Illinois, United States |
|
| 12. Edward F. McMahon |
=> |
|
| B: |
9 Aug 1872 |
| P: |
, , Wisconsin, United States |
| M: |
8 Feb 1893 |
| P: |
Doylestown, Columbia, Wisconsin, United States |
| D: |
9 Apr 1930 |
| P: |
Webster, Hamilton, Iowa, United States |
|
