Mary Plummer Cheney was born 28 July 1694 in Rowley, Essex County, Massachusetts to Benjamin Plummer (1656-1724) and Mary Ann Wood (1660-1715) and died 28 June 1748 Newbury, Essex County, Massachusetts of unspecified causes. She married Edmund Cheney (1696-1761) 18 November 1714 in Essex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Moses Cheney (1715-1759) | 1715 Newbury, Essex County, Massachusetts | 21 February 1759 Newbury, Essex County, Massachusetts | Sarah Whitten (1720-) |
| Mary Cheney (1719-) | |||
| Edmond Cheney (1719-1761) | |||
| Peter Cheney (1721-) | |||
| Martha Cheney (1724-) | |||
| John Cheney (1731-1818) | |||
| Sarah Cheney (1733-) | |||
| Mary Cheney (1722-) | |||
Siblings