The collection contains correspondence between members of the Gideon and Mary W. (Willets) Frost family, Hicksite Quakers of Westbury, Long Island, New York. Gideon Frost was a successful merchant, philanthropist, and founder of Friends Academy at Locust Valley. Family members were active in Quaker concerns, especially education and abolition. The letters mention prominent Friends, family, and anti-slavery concerns.
1831, 1838, 1843 and 1871