Not sure if there is any connection, but Book of Dow has an Isaiah Dow b. 4 Feb 1738 who m. Sarah Kimball in 1758. They had a son, Isaiah b. Amesbury 1 April 1768. This Isaiah(wife's name not known) had 4 children, and one was an Isaiah who m. in Orwell VT 2 Jan 1819, a Loving Cutting of Bristol. They are untraced.