Hannah Leffingwell Flagg was born 6 January 1646 in Woburn, Middlesex County, Massachusetts to Michael Leffingwell (1603-1687) and Isabell Cox (1605-1671) and died 29 March 1724 Woburn, Middlesex County, Massachusetts of unspecified causes. She married Gershom Flagg (1641-1690) 15 April 1668 in Woburn, Middlesex County, Massachusetts.
Accouring to North's History of Augusta Maine, Lt Gershom was slain by indians at Lamprey River, NH on 06 July 1690 while on an expedition against Port Royal, Acadia in French Territory. His widow married on 10 Dec 1696 to Ensign Israel Walker, whose first wife died 09 Mar 1694.
Children
| Name | Birth | Death | Joined with |
| Gershom Flagg (1669-1755) | 10 March 1669 Woburn, Middlesex County, Massachusetts | 24 August 1755 Woburn, Middlesex County, Massachusetts | Hannah Unknown Flagg |
| Eliezer Flagg (1670-1726) | |||
| John Flagg (1673-1732) | 25 May 1673 Woburn, Middlesex County, Massachusetts | 19 December 1732 Boston, Suffolk County, Massachusetts | Abiah Kornic (1675-1715) Mary Belcher (1695-1726) |
| Hannah Flagg (1675-1740) | |||
| Thomas Flagg (1677-1677) | |||
| Ebenezer Flagg (1678-1746) | |||
| Abigail Flagg (1680-1768) | |||
| Mary Flagg (1682-1786) | |||
| Thomas Flagg (1685-) | |||
| Benoni Flagg (1687-1687) | |||
Siblings