Henry Foster was born in Sturbridge, Massachusetts, on March 31, 1737, the son of Edward Foster (1714-1775) and Rachel Foster (d. 1803). He served in a provincial regiment at Lake George, New York, during the French and Indian War. He and his wife, Abigail Alexander, were married in Winchester, New Hampshire, and had seven children: Henry (1779-1859), Hannah (b. 1763), Abigail (b. 1766), Rachel (1776-1807), Edward (b. 1778), Moses (b. 1781), and Elisha (b. 1783). Henry Foster died in 1782.
The younger Henry Foster married Polly Hubbard (1785-1870), the daughter of Abner Hubbard (1750-1834) and Esther Hamlin (1760-1836) of Middletown, Connecticut. Abner Hubbard served as sergeant major of the 3rd Connecticut Regiment during the Revolutionary War, and later lived in Norwich, Vermont.
From the guide to the Henry Foster diary, Foster, Henry diary, 1757-1812, 1758, 1808-1812, (William L. Clements Library, University of Michigan)
