Benjamin Smith was born 7 January 1658 in Sandwich, Barnstable County, Massachusetts, United States to John Smith (1614-1710) and Susannah Hinckley (1625-1675) and died 4 July 1720 Edgartown, Dukes County, Massachusetts, United States of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Dorcas Smith (1687-1730) | |||
| Benjamin Smith (1691-1737) | |||
| Thomas Smith (1697-1765) | |||
| Abiah Smith (1698-1730) | |||
Siblings
| Name | Birth | Death | Joined with |
| Samuel Smith (1644-1719) | 20 October 1644 Barnstable, Barnstable County, Massachusetts, United States | 15 December 1719 Woodbridge, Middlesex County, New Jersey, United States | Elizabeth Pierce (1660-1692) |
| Shubael Smith (1654-1734) | 13 March 1654 Barnstable, Barnstable County, Massachusetts, United States | 5 April 1734 Chilmark, Dukes County, Massachusetts, United States | Maria Swift (1659-1682) Abigail Skiffe (1665-1718) Anne Samson (c1670-) |
| Benjamin Smith (1658-1720) | 7 January 1658 Sandwich, Barnstable County, Massachusetts, United States | 4 July 1720 Edgartown, Dukes County, Massachusetts, United States | Jedidiah Mayhew (1656-1735) |