↑ Barrett, Joseph Hartwell. "Thomas Barrett of Braintree, William Barrett of Cambridge", in The New England Historical and Genealogical Register. (Boston: New England Historic Genealogical Society) pp. 42:259-260.
John Barrett m. (3) abt. 1708 [son born to them 13 Dec 1709] Abigail (Wilson) Hildreth, widow of Joseph Hildreth [3 Jul 1713 she is referred to as "the widow of the late Joseph Hildreth of Chelmsford (now the wife of Jonathan Barrett of Chelmsford)"].