Lt. John H. Plummer was born 5 October 1708 in Rowley, Essex County, Massachusetts to Benjamin Plummer (1681-1734) and Jane Pearson (1684-1771) and died after 1749 Newcastle, Lincoln County, Maine of unspecified causes. He married Mary Nelson (1713-1743) 15 December 1730 in Rowley, Essex County, Massachusetts.
Children
| Name | Birth | Death | Joined with |
| Bemsley Plummer (1731-1764) | |||
| John Plummer (1734-1736) | |||
| Hannah Plummer (1734-1736) | |||
| Mary Plummer (1736-1756) | |||
| John Plummer (1737-1814) | |||
| David Plummer (1739-) | |||
| Daniel Plummer (1739-) | |||
| Jane Plummer (1741-1767) | 11 November 1741 Rowley, Essex County, Massachusetts | 1767 Newbury, Essex County, Massachusetts | Elias Cheney (1741-1832) |
Siblings