Mary Cornwell Fuller was born 21 November 1694 in Middletown, Middlesex County, Connecticut to William Cornwell (1671-1747) and Esther Ward (1669-1734) and died 5 January 1758 East Haddam, Middlesex County, Connecticut of unspecified causes. She married John Fuller (1697-1769) 10 May 1721 in East Haddam, Middlesex County, Connecticut.
Children
| Name | Birth | Death | Joined with |
| Mary Fuller (1722-1786) | |||
| Esther Fuller (1724-1796) | |||
| Mehitable Fuller (1726-1793) | |||
| Andrew Cornwall Fuller (1727-1750) | |||
| William Fuller (1728-1768) | 16 June 1729 East Haddam, Middlesex County, Connecticut | 25 December 1768 East Haddam, Middlesex County, Connecticut | Rebekah Spencer (1737-1780) |
| Asa Fuller (1733-) | |||
| Sarah Fuller (1737-1787) | |||
Siblings