I too have a William C. Edwards in my tree. His daughter Margaret was my ggrandmother. She married John W. Edwards in Illinois and moved to missouri, then to Texas.She was in oklahoma in 1900 with my grandfather John T. I do not know exactly where Margaret and John died or where they are buried. and I do not know exactly where William and Elizabeth died and are buried. Your help would be appreciated. I know about Williams other children. Thanks, Joyce Smith