| Name | Birth date | Relationship with Michael McGrath |
|---|
| Mason, Eugene S. | 9/4/1884 | Great-granduncle |
| Mason, Five Kids | | 3rd cousin once removed |
| Mason, Greg | | 3rd cousin once removed |
| Mason, Hanora A. | 1883 | 1st cousin 3 times removed |
| Mason, Hanorah Ellen | 7/25/1886 | Great-grandmother |
| Mason, Herbert | 1881 | Husband of the 1st cousin 3 times removed |
| Mason, James | 7/14/1882 | Great-granduncle |
| Mason, James Andrew | 2/15/1876 | 1st cousin 3 times removed |
| Mason, Johanna | 6/18/1849 | 2nd great-grandaunt |
| Mason, Johanna C. | 9/18/1882 | 1st cousin 3 times removed |
| Mason, John | Abt. 1805 | 3rd great-grandfather |
| Mason, John | Abt. 7/1856 | 2nd great-granduncle |
| Mason, John | 1875 | 1st cousin 3 times removed |
| Mason, John | 9/14/1879 | Great-granduncle |
| Mason, John Lawrence | 1/13/1881 | 1st cousin 3 times removed |
| Mason, John Robert | | 2nd cousin twice removed |
| Mason, Karen | | 3rd cousin once removed |
| Mason, Katherine Anita | 10/5/1920 | 2nd cousin twice removed |
| Mason, Katherine Lenora | 1/3/1917 | 2nd cousin twice removed |
| Mason, Kathleen Teresa (Kate) | 10/12/1891 | Great-grandaunt |
| Mason, Keith | | 3rd cousin once removed |
| Mason, Leon | Abt. 1922 | 2nd cousin twice removed |
| Mason, Lucille | | 2nd cousin twice removed |
| Mason, Lucille Elizabeth | 6/28/1920 | 2nd cousin twice removed |
| Mason, Margaret Ann | 12/16/1878 | 1st cousin 3 times removed |
| Mason, Marguerite | | 2nd cousin twice removed |
| Mason, Marilyn | | 3rd cousin once removed |
| Mason, Mark | | 3rd cousin once removed |
| Mason, Mary | Abt. 1857 | 2nd great-grandaunt |
| Mason, Mary Alice | 2/18/1885 | 1st cousin 3 times removed |
| Mason, Mary Ann | 8/28/1877 | Great-grandaunt |
| Mason, Mary Ellen | 11/15/1875 | 1st cousin 3 times removed |
| Mason, Mary Leona | 12/20/1918 | 2nd cousin twice removed |
| Mason, Mary Marguerite | 7/6/1919 | 2nd cousin twice removed |
| Mason, Maureen | | 3rd cousin once removed |
| Mason, Neil | | 3rd cousin once removed |
| Mason, Nora | | 1st cousin twice removed |
| Mason, Robert | | 3rd cousin once removed |
| Mason, Rose Ann | 2/21/1921 | 2nd cousin twice removed |
| Mason, Some Kids | | 3rd cousin once removed |
| Mason, Son | | 1st cousin twice removed |
| Mason, SonA | | Half 2nd great-granduncle |
| Mason, SonB | | Half 2nd great-granduncle |
| Mason, Steven | | 3rd cousin once removed |
| Mason, Thomas | 11/14/1841 | 2nd great-granduncle |
| Mason, Thomas | 6/18/1880 | 1st cousin 3 times removed |
| Mason, Thomas | Abt. 1924 | 2nd cousin twice removed |
| Mason, Veronica | | 2nd cousin twice removed |
| Mason, Veronica Mary Helen | 11/30/1918 | 2nd cousin twice removed |
| Mason, William | | 2nd cousin twice removed |
