My Great Grandfather was Thoms Shivell the son of George Washington Shivell Sr. and Nancy Cruthers Scott. My Grandfather was Robert Henry Shivell the son of Thomas Shivell and Miranda Miles. I am looking for information on any of the ancestors or descendants of Thomas Shivell especially his father George or his mother Nancy. I have read many times in my research that there is a Shivell Family Memoir written by William T. Shivell. Does anyone know how I can locate a copy ?