Can someone please come to my rescue and help me sort out these UNDERWOODS of East Tennessse? My Great Grandmother was Mahala Underwood. She was married to John Houston Pigg. Theymoved on to Mercer, Missouri, but it is the other UNDERWOODS that cause me grief!. They seem to be intermarried with the PIGG, CATES, HICKMAN families. I feel like I need a PH.D. to place these people in the proper families! I AM JUST A TEACHER. I'M NOT VERY LOGICAL!!