I am great-grandaughter of Susannah Butler and Lawrence Thompson. Have been searching for the connection between Samuel Ferguson Butler (Susannah's father) and Col. John Butler. Family tradition has it that Samuel F. Butler (b. 1822) was descendant of Col. John Butler of Butler's Rangers (British unit in U.S. Revolutionary War). Also have heard that there may be some native blood in the Butler family. I have no concrete proof, however.