I just re-read what I wrote and realized I made an error. Josiah Bartlett father of Susannah,was not brother of Stephen but rather his nephew.Josiah (d 1802) was son of Cpt Richard Bartlett and second wife Susannah (Singletery) Eastman.They are buried in the Walnut Hill Cem West Newbury.and, by the way, buried in the row behind, is Ezekiel Hale and Ruth Emery, parents of Lydia Hale who was wife of Josiah Bartlett and parents of Susannah.
Cpt Richard Bartlett was brother of Stephen and son of Richard BArtlett and Hannah Emery (Sawyer's Hill Burying Ground Newburyport).
Cpt Richard Bartlett was also uncle of mary Bartlett who married Gov Josiah Bartlett....the signers' own first cousin.
Susannah Singletery's daughter Hannah Eastman is in the grave between Richard and Susannah.Most genealogies show that she married and died on some specific date I don't recall, but she remained single.
Susannah Singletery's uncle, Jonathan got into a little trouble and moved to New Jersey where he changed his name to Dunham.His direct descendant, Stanley Ann Dunham, is Barack Obama's mother.