Mary Atwell was born 8 June 1705 in New London, Connecticut, United States to Thomas Atwell (1680-1736) and Mary Lewis (1678-1738) and died 15 November 1739 Hartford, Connecticut, United States of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Jeremiah Richards (1731-1801) | 8 September 1731 New London, Connecticut, United States | 9 April 1801 New London, Connecticut, United States | Mary Atwell (1745-1820) |
Siblings
| Name | Birth | Death | Joined with |
| Mary Atwell (1705-1739) | 8 June 1705 New London, Connecticut, United States | 15 November 1739 Hartford, Connecticut, United States | Jeremiah Richards (1704-1760) |