Margaret Longley was born 28 October 1671 in Groton, Massachusetts, United States to John Longley (1638-1691) and Hannah Elvey (1644-1676) and died 1 April 1752 Pomfret, Connecticut, United States of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Abigail Coye (1704-1777) | 6 January 1704 Newton, Massachusetts, United States | 30 March 1777 Union, Connecticut, United States | Edward Houghton (1705-1777) |
Siblings
| Name | Birth | Death | Joined with |
| Margaret Longley (1671-1752) | 28 October 1671 Groton, Massachusetts, United States | 1 April 1752 Pomfret, Connecticut, United States | Archibald McCoy (1670-1744) |