Mary Jones Coolidge was born 2 April 1720 in Brookline, Norfolk County, Massachusetts to Samuel Jones (1672-1753) and Abigail Snow (1677-1753) and died 1756 Lancaster, Worcester County, Massachusetts of unspecified causes. She married Josiah Coolidge (1718-1780) 26 April 1742 in Brookline, Norfolk County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Mary Coolidge (1741-) | |||
| Josiah Coolidge (1750-) | |||
| John Coolidge (1756-1822) | 1756 Bolton, Worcester County, Massachusetts, United States | 23 March 1822 Plymouth, Windsor County, Vermont, United States | Hannah Priest (1750-1828) |
| Obadiah Coolidge (1760-1822) | |||
| Isaac Coolidge (1761-) | |||
Siblings