| Father | Male William Powell Mason |
| Born | 9 Dec 1791 | Boston, Suffolk County, Massachusetts  |
| Died | 4 Dec 1867 | Cambridge, Middlesex County, Massachusetts |
| Buried | ||
| Married | 14 Sep 1831 | Boston, Suffolk County, Massachusetts |
| Father | Senator Jonathan Mason, Jr. | F38401 Group Sheet | |
| Mother | Susannah Powell | F38401 Group Sheet | |
| Mother | Female Hannah Rogers |
| Born | 21 Dec 1806 | Boston, Suffolk County, Massachusetts |
| Died | 19 Jun 1872 | Brookline, Norfolk County, Massachusetts |
| Buried | ||
| Father | ||
| Mother | ||
| Child 1 | Female Elizabeth Rogers Mason |
| Born | 25 May 1834 | Boston, Suffolk County, Massachusetts |
| Died | 12 Dec 1920 | Brookline, Norfolk County, Massachusetts |
| Buried | ||
| Spouse | Walter Channing Cabot | F38364 | |
| Married | 5 Jun 1860 | Boston, Suffolk County, Massachusetts |
