Hello Sandra,
Thank you very much for your continued help! :-) I really appreciate it as I'm finding absolutely no information on the son. However, I was fortunate enough to get a name - Kenneth Oliver; but the library could not find any indication of when or where he was born, but it would seem that it wasn't in the Kosciusko area, unless he was born at home and the birth was never registered? I do not know if Charles and Nellie may have had children other than Kenneth.
Charles Edwin died in 1933 and it turns out that he committed suicide (that was quite unexpected!). In the two newspaper articles on Charles' death that the library provided Kenneth is mentioned as living in Chicago, so I presume he had reached adulthood and had to be, at least, 20ish years old. The fact that Nellie was about 20 years younger than Charles does rather widen the parameters for when Kenneth could have been born.
Of course, it is possible that Kenneth was not Charles' son by birth, perhaps Nellie had a child before she married Charles?
It is quite the mystery and I would love to find out more about Kenneth; I doubt I would be lucky enough to find him still alive, but perhaps his children and grandchildren are traceable.
Thanks Sandra!
Tam