After Isaiah died, in the Revolutionary War?, Susannah married Samuel Hamilton. Note that in both Yale books, she married a Hamilton and lived in Egremont, Mass. Samuel is the only Hamilton/Hambleton living there in 1790 & 1800. He died before probate date 10 Jan 1804.

In the estate papers for Samuel Hamilton of Egremont: "Know all men by these Presents, that we "Seth Hamilton as principal, Susanna Hamilton of Egremont, and John Hamilton of Stockbridge as sureties all in the county of Berkshire"... This paper is signed by Seth and Susanna, as well as others. Seth is Samuel's son by his first marriage to his cousin Mary Hamilton.