Alexander Plumley was born 28 June 1682 in Braintree, Norfolk County, Massachusetts to Joseph Plumley (1653-1740) and Jane Adams (1653-1723) and died 25 October 1726 Mendon, Worcester County, Massachusetts of unspecified causes. He married Elizabeth Drew (1682-1757) 5 December 1701 in Mendon, Worcester County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| John Plumley (1702-1740) | |||
| Mary Rankin (1704-1752) | |||
| Abigail Plumley (1707-) | |||
| Alexander Plumley (1707-) | |||
| Elizabeth Plumley (1709-) | |||
| Mercy Plumley (1711-) | |||
| Hannah Plumley (1713-1750) | |||
| Lydia Plumley (1716-) | |||
| Daniel Plumley (1719-1781) | 10 May 1719 Mendon, Worcester County, Massachusetts, United States | 27 August 1781 Sharon, Windsor County, Vermont, United States | Abigail Preston (1723-1814) |
| Joseph Plumley (1721-1757) | 26 June 1721 Mendon, Worcester County, Massachusetts, United States | 6 September 1757 Upton, Worcester County, Massachusetts, United States | Dorcas Addy (1724-1758) |
| Richard Plumley (1723-) | |||
Siblings
| Name | Birth | Death | Joined with |
| Elizabeth Plumley (1672-) | |||
| Mary Plumley (1674-) | |||
| John Plumley (1676-1740) | |||
| Joseph Plumley (1678-) | |||
| Abigail Plumley (1680-) | |||
| Alexander Plumley (1682-1726) | 28 June 1682 Braintree, Norfolk County, Massachusetts | 25 October 1726 Mendon, Worcester County, Massachusetts | Elizabeth Drew (1682-1757) |
| Daniel Plumley (1684-) | |||
| Mercy Plumley (1686-) | |||
| Hannah Plumley (1688-) | |||
| Lydia Plumley (1690-) | |||