1Bruce Harrison, The Family Forest Descendants of Lady Joan Beaufort, p. 1250 (2005).
"4519. Elizabeth14 Sprague (Lydia13 Barrows, Robert12, Lydia11 Dunham, John10, Deacon John9, Thomas8, Ralph7, John6, Sir John5, Sir John4, Margaret3 of Stafford, Lady Anne2 Neville, Lady Joan1 Beaufort), born19835 1756. She married in 1780 Lieutenant William Isaac Chamberlain, born 1756; died 1833, son of Isaac Chamberlain and Mary Keyes.
Facts for Lieutenant William Isaac Chamberlain
Of Sharon, CT19836. Lieutenant in the American Revolution19837.
Children of Elizabeth Sprague and Lieutenant William Isaac Chamberlain were as follows:
+ 6492 i Jacob15 Chamberlain.".