When Elizabeth Grosvenor was born in 1791, in Bennington, Bennington, Vermont, United States, her father, Theophilus Grosvenor, was 36 and her mother, Baththeba Thornton, was 26. She married Hopkins Webster about 1814, in Vermont, United States. They were the parents of at least 2 sons. She died in September 1829, at the age of 38.