1898 - 1951 (52 years)
| William F. Ross Abt 1921- |
| William F. Ross | |
| B: | Abt 1921 |
| Washington State | |
| Robert Ross Abt 1923- |
| Robert Ross | |
| B: | Abt 1923 |
| Washington State | |
|
| William Milford Ross 1898-1951 |
| William Milford Ross | |
| B: | 28 Mar 1898 |
| Lake City, Missauke, Michigan | |
| D: | 3 Jan 1951 |
| Everett, Snohornish, Washington, USA | |
 | Pearl W. Aitken Abt 1902- |
| Pearl W. Aitken | |
| B: | Abt 1902 |
| Canada | |
| M: | Bef 1920 |
| Esther Hoem Abt 1912- |
| Esther Hoem | |
| B: | Abt 1912 |
| Washington State | |
| M: | Bef 1930 |
