Asa Barnes was born 28 June 1756 in Marlborough, Middlesex County, Massachusetts to Frederick Barnes (1727-1778) and Mary Howe (1727-1813) and died 1812 Hillsborough, Hillsborough County, New Hampshire of unspecified causes. He married Matilda Woods (1757-) 20 April 1780 .
Asa Barnes (1756-1812), was a private in Capt. Silas Gates' Co., Ward's regiment, 1775. He was born in Marlboro. Marlborough 1775 Minuteman Roster
Children
| Name | Birth | Death | Joined with |
| Eben Barnes (1781-1865) | |||
| Lucy Barnes (1782-) | |||
| Daniel Barnes (1785-1800) | |||
| Aaron Barnes (1787-1870) | |||
| Moses Barnes (1790-1822) | |||
| Samuel Barnes (1796-) | |||
| Asa Barnes (1798-) | |||
| Betsey Barnes (1793-1874) | |||
Siblings
| Name | Birth | Death | Joined with |
| Asa Barnes (1756-1812) | 28 June 1756 Marlborough, Middlesex County, Massachusetts | 1812 Hillsborough, Hillsborough County, New Hampshire | Matilda Woods (1757-) |
| Benjamin Barnes (1752-1812) | |||
| Lucy Barnes (1767-1839) | |||