Dorcas Addy Plumley was born 15 April 1724 in Uxbridge, Worcester County, Massachusetts, United States to John Addy (1700-1751) and Sarah Libby (1705-1743) and died 24 February 1758 Worcester County, Massachusetts, United States of unspecified causes. She married Joseph Plumley (1721-1757) 30 July 1747 in Uxbridge, Worcester County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Sarah Plumley (1747-) | |||
| John Plumley (1750-1828) | 1750 Upton, Worcester County, Massachusetts, United States | 9 February 1828 Shrewsbury, Rutland County, Vermont, United States | Susannah Clayton (1754-1783) Betsey Perkins (1768-1840) |
| Oliver Plumley (1752-1808) | |||
| Joseph Plumley (1754-1808) | |||
| Elizabeth Plumley (1756-) | |||
Siblings