Carl, I have some very sketchy information on a family who had William David Gillham. the info has little in the line of dates, etc, but I don't have any indication of multiple marriage, nor do I have the name of the wife by whom he supposedly had children:
William Pierce, Sr., Edmond Mayes (born cir 1908), Lela and Irene. I got the information from William Pierce, Jr. back in 1987 or 88. Unfortunately, the info he gave me was sketchy at best. His wife's name was Maydon.
I'd like to have any information you have that you would share with me and allow me to add to my database. I'll look forward to hearing from you. Should you wish to snail mail me, my address is: 2700 Highway 67 (Missouri Ave) Granite City, IL 62040-2029.