When Elizabeth Fitzgerald was born in 1776, in Montgomery, Montgomery, Orange, New York, United States, her father, Jeremiah Fitzgerald, was 25 and her mother, Anna Margaret Mingus, was 26. She married Warren Kneeland on 3 January 1809, in Marcellus, Marcellus, Onondaga, New York, United States. They were the parents of at least 5 sons and 1 daughter. She died in 1818, in Marcellus, Marcellus, Onondaga, New York, United States, at the age of 42.