I am copying the information you posted and will give it to my friend to look at. Violet Kingen Sturm and Guy Simmons did not have children together. They had both been married before.
If my memory serves me, I don't believe any of the Kingen boys married and but I could be wrong. I know that at least two of them were not married. Emaline Hyde's only child, Richard Hyde, died on Labor day this year in Peoria. Both Emaline and Violet are in care facilities. I've never met Thelma, but Violet is a lovely lady at 90. Very striking white hair.
Violet had 3 daughters and 2 sons by Robert Sturm, all still living.
From a recent discussion, it was indicated to me that Violet's mother was a Camp not Rogers.
I will give the info to my friend along with your email address in case he wants to contact you with additional info or corrections.