I don't want to get your hopes up but William Cowsert does sound familiar. I am from Portage, Indiana and there are many relatives of mine with the Cowsert name. I think if you e-mailed me we could figure this out as my mother was Peggy Jean Cowsert and I am thinking maybe her father Cecil Cowsert of Missouri (deceased) could be a connection. Also one of my aunts, Agnes Cowsert McDaniel. Please reply as I am trying to trace the Cowsert/Underwood family. Good luck on your search and I hope I will be of some help.