The Tapley Book has "Alexander (Samuel, Samuel, John)b. Topsfield, Mass., about 1740; mar. Topsfield 9 Dec. 1762, Sarah Hood of Topsfield. He moved to New Brunswick, where many of his descendants now reside, in Woodstock and other places."Nothing on their descendants.
Do you belong to the New England Historic Genealogical Society?If not, I can see if there is anything there on Susan.