Melissa:
My Father was married 4 times. 1. Erma Lawson which is my mother. I have two  sisters, Judy and Shirley. 2. Ethel Clemmer  and they had one daughter, my Half Sister Patty. 3. Peggy Eby, with a stillborn child and Finally 4. Sylvia Jean Kornmiller had one child together, my half sister Desire'.
Hope this helps
Joe