Joseph Benjamin was born 16 September 1633 in Cambridge, Middlesex County, Massachusetts, United States to John Benjamin (1585-1645) and Abigail Eddy (c1601-1687) and died April 1704 Preston, New London County, Connecticut, United States of unspecified causes. He married Jemima Lumbert (1636-?) . He married Sarah Clark (1639-1716) 1666 in Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Jemima Benjamin (1666-1742) | February 1666 Barnstable, Barnstable County, Massachusetts, United States | 1742 | Stephen Gates (1665-1732) |
| Name | Birth | Death | Joined with |
| Sarah Benjamin (1667-) | |||
| Hannah Benjamin (1668-1750) | February 1668 Yarmouth, Barnstable County, Massachusetts | 7 September 1750 Haddam, Hartford County, Connecticut | Simon Gates (1666-1752) |
| Mary Benjamin (1670-1723) | |||
| Joseph Benjamin (1673-1738) | |||
| Mercy Benjamin (1674-1709) | |||
| Kezia Benjamin (1678-1782) | |||
| Elizabeth Benjamin (1680-1721) | |||
| John Benjamin (1682-1716) | |||
| Jerusha Benjamin (1690-) | |||