1727 - 1778 (51 years)
 | Rev. Dr. Edward Beecher Mason 1838-1907 |
| Rev. Dr. Edward Beecher Mason | |
| B: | 7 May 1838 |
| Cincinnati, Hamilton County, Ohio | |
| D: | 1 Oct 1907 |
| Brunswick, Cumberland County, Maine | |
| Helen Augusta Mason 1841-1922 |
| Helen Augusta Mason | |
| B: | 27 Nov 1841 |
| Cincinnati, Hamilton County, Ohio | |
| D: | 21 Oct 1922 |
| Washington, District of Columbia, District of Colombia | |
 | Gen. Henry Van Ness Boynton 1835-1905 |
| Gen. Henry Van Ness Boynton | |
| B: | 22 Jul 1835 |
| West Stockbridge, Berkshire County, Massachusetts | |
| D: | 3 Jun 1905 |
| Atlantic City, Atlantic County, New Jersey | |
| William Lyman Mason 1847-1909 |
| William Lyman Mason | |
| B: | 21 Jan 1847 |
| Cincinnati, Hamilton County, Ohio | |
| D: | 12 Oct 1909 |
| Washington, District of Columbia, District of Colombia | |
| Timothy Battelle Mason 1801-1861 |
| Timothy Battelle Mason | |
| B: | Nov 1801 |
| D: | 10 Feb 1861 |
| Cincinnati, Hamilton County, Ohio | |
 | Abigail K. "Abby" Hall 1800-1875 |
| Abigail K. "Abby" Hall | |
| B: | 24 Jan 1800 |
| Newton, Middlesex County, Massachusetts | |
| M: | 25 May 1837 |
| Newton, Middlesex County, Massachusetts | |
| D: | 15 Apr 1875 |
| Indianapolis, Marion County, Indiana | |
| Catherine "Caty" Hartshorn 1768-1852 |
| Catherine "Caty" Hartshorn | |
| B: | 25 Apr 1768 |
| Medfield, Norfolk County, Massachusetts | |
| D: | 28 May 1852 |
| Medfield, Norfolk County, Massachusetts | |
| Lt. Col. Johnson Mason 1767-1856 |
| Lt. Col. Johnson Mason | |
| B: | 7 Aug 1767 |
| Medfield, Norfolk County, Massachusetts | |
| M: | 23 Jun 1791 |
| Medfield, Norfolk County, Massachusetts | |
| D: | 13 Nov 1856 |
| Medfield, Norfolk County, Massachusetts | |
| Moses Hartshorn 1727-1778 |
| Moses Hartshorn | |
| B: | 6 Feb 1726/27 |
| Dedham, Norfolk County, Massachusetts | |
| D: | 16 Sep 1778 |
| Walpole, Norfolk County, Massachusetts | |
| Elizabeth Smith 1730-1782 |
| Elizabeth Smith | |
| B: | 13 Aug 1730 |
| Medfield, Norfolk County, Massachusetts | |
| D: | 11 Jul 1782 |
| Medfield, Norfolk County, Massachusetts | |
