Very late reply to your post, which I just read!
I am related to Robert Prince, through his son Joseph, as follows:
Robert Prince and Sarah Warren had two sons, James and Joseph.
Joseph (born 1698) was the father of
Timothy, (1722)who was the father of
Samuel, (1745)who was the father of
Orland, (1787) who was the father of
David, (1822) who was my great-great grandfather. His daughter
Marie (or May) was my great grandmother, her son was my grandfather Truman Prince Moore