Mary Naomi Leffingwell Stimson was born 8 November 1638 in Cambridge, Middlesex County, Massachusetts to Michael Leffingwell (1612-) and Isabell Benjamin (1623-1671) and died 28 March 1681 Reading, Middlesex County, Massachusetts of unspecified causes. She married James Stimson (1636-1690) 1660 in Reading, Middlesex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Noami Stimson (1663-) | |||
| Abigail Simson (1663-1667) | |||
| Ruth Stimson (1664-1747) | 2 September 1664 Reading, Middlesex County, Massachusetts | 5 January 1747 Massachusetts | John Barnard Pratt (1663-1716) |
| Thomas Stimson (1666-1666) | |||
| James Stimson (1669-1758) | |||
| Thomas Stimson (1671-) | |||
| Jonathan Stimson (1675-1728) | |||
| David Stimson (1675-) | |||
| Mary Stimson (1677-1677) | |||
| Soloman Stimson (1680-1725) | |||
| Mary Stimson (1679-) | |||
| Benjamin Stimson (1681-1775) | |||
Siblings