Mary Barrett Gleason was born 1695 in Marlborough, Middlesex County, Massachusetts to John Barrett (1663-1715) and Deborah Howe (1666-1708) and died circa 1768 Marlborough, Middlesex County, Massachusetts of unspecified causes. She married James Gleason (1684-1750) 24 November 1713 in Marlborough, Middlesex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Daniel Gleason (1715-1715) | |||
| Mary Gleason (1716-) | |||
| Sarah Gleason (1718-) | |||
| Abigail Gleason (1722-) | |||
| John Gleason (1724-1816) | |||
| Martha Gleason (1724-1793) | |||
| Joseph Gleason (1726-1805) | 1726 Sudbury, Middlesex County, Massachusetts | 14 May 1805 Marlborough, Middlesex County, Massachusetts | Persis Allen (1736-1812) |
| Zaccheus Gleason (1728-1730) | |||
| Submit Gleason (1733-) | |||
Siblings
| Name | Birth | Death | Joined with |
| Hannah Barrett (1689-1710) | |||
| Sarah Barrett (1692-1730) | |||
| Lidiah Barrett (1694-1695) | |||
| Mary Barrett (1695-1768) | 1695 Marlborough, Middlesex County, Massachusetts | 1768 Marlborough, Middlesex County, Massachusetts | James Gleason (1684-1750) |
| Benoni Barrett (1697-1700) | |||
| Thankful Barrett (1697-) | |||