Re: Charles Waller
Katherine - Are Kitty and Chester alive? I searched for Chester Gurski on ancestry.com and found five deceased and two living. Two of the deceased appeared to be from the Chicago area. I would request the death certificate and then obtain an obituary from the funeral home or newspaper. The obit should mention his survivors, including step sons.
There are many Charles and Richard Wallers listed. Looking for Gurski might work. Good luck.