A source for the names of those that surrendered at Appotmattox can be found in the "Southern Historical Society Papers". This set of books may be in a library near you. The "Appotomattox Roster", as it is called in in Volume 25 if I remember correctly. There are 23 thousand names listed. Look for your relatives name in the index and check the pages listed. The roster has also been published as a separate book called "The Appottomatox Roster".