Mary Pratt Ball was born circa 1752 in Bolton, Worcester County, Massachusetts to Abijah Pratt (1726-1831) and died before 1825 of unspecified causes. She married Jonathan Ball (1751-1819) 17 September 1773 in Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Becky Ball (1778-) | |||
| Elizabeth Ball (1783-) | |||
| Hannah Ball (1785-) | |||
| Asenath Ball (1788-) | |||
| Lucy Ball (1789-) | |||
| Silas Ball (1792-) | |||
| William Ball (1796-1885) | 15 September 1796 Boston, Suffolk County, Massachusetts | 15 March 1885 Bolton, Worcester County, Massachusetts | Elizabeth Rice (1796-1871) |
Siblings