Moses Leonard was born 12 May 1677 in Bridgewater, Suffolk County, Massachusetts to John Leonard (1644-1699) and Deliverance Ames (1653-) and died 10 December 1775 Barre, Worcester County, Massachusetts of unspecified causes. He married Mercy Newton (1685-1714) 1705 in Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Moses Leonard (1706-1788) | |||
| Mercy Leonard (1708-1793) | |||
| Ezra Leonard (1711-1798) | |||
| Marcy Leonard (1714-1793) | 1 December 1714 Marlborough, Middlesex County, Massachusetts | 3 June 1793 Bennington, Bennington County, Vermont | Samuel Robinson (1707-1767) |
| Jonas Leonard (1717-1757) | |||
| Andrew Leonard (1719-1805) | |||
Siblings
| Name | Birth | Death | Joined with |
| John Leonard (1672-1726) | |||
| Enoch Leonard (1675-1757) | |||
| Moses Leonard (1677-1775) | 12 May 1677 Bridgewater, Suffolk County, Massachusetts | 10 December 1775 Barre, Worcester County, Massachusetts | Mercy Newton (1685-1714) |
| Josiah Leonard (c1680-) | 1678 Bridgewater, Plymouth County, Massachusetts | 6 February 1743 Bridgewater, Plymouth County, Massachusetts | Marjoram Washburn (1679-1717) |
| Joseph Leonard (1692-1786) | |||