Thomas Barnes, Sr. was born circa 1610 in Barking, Essex, England to Roland Barnes (1585-1634) and Alice Cooper (1580-1615) and died 10 June 1690 of unspecified causes. He married Mary Andrews (1601-) 1633 . He married Elizabeth Unknown 2 July 1662 in Marlborough, Middlesex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Sarah Barnes (1631-1689) | |||
| Ebenezer Barnes (1626-1756) | |||
| Thomas Barnes (1636-1679) | 18 October 1636 Cumberland, England | 2 July 1679 Marlborough, Middlesex County, Massachusetts | Abigail Goodenow (1642-1678) |
| Name | Birth | Death | Joined with |
| James Barnes (1666-1730) | |||
Siblings