When Philura Jane Harmon was born in 1798, in Bennington, Bennington, Vermont, United States, her father, Luther Harmon, was 28 and her mother, Betsey French, was 22. She married William Smith Roberts on 9 March 1815, in Bennington, Vermont, United States. They were the parents of at least 7 sons and 1 daughter. She died on 11 June 1835, in Pomfret, Chautauqua, New York, United States, at the age of 37, and was buried in Fredonia, Pomfret, Chautauqua, New York, United States.