Mary Maltby Lewis was born 18 July 1708 in Saybrook, New Haven County, Connecticut to John Maltby (1664-1727) and Hannah Lord (1674-1750) and died circa 1793 Litchfield, Litchfield County, Connecticut of unspecified causes. She married Gersham Lewis (1704-1766) 1726 in Guilford, New Haven County, Connecticut.
Children
| Name | Birth | Death | Joined with |
| John Lewis (1736-1758) | |||
| Gershom Lewis (1738-1739) | |||
| Nathaniel Lewis (1740-1817) | 22 October 1740 Guilford, New Haven County, Connecticut | 1817 Blockville, Chautauqua County, New York | Esther Tuttle (1747-1824) |
| Mary Lewis (1742-1823) | |||
| Elizabeth Lewis (1743-1820) | |||
| Osias Lewis (1750-1812) | |||
| Reuben Lewis (1753-1779) | |||
Siblings