Yes, I found the same obit too.
It mentions sons but nothing about Violet. I wanted to look up the death certificate for him, but the state of Illinois apparently has placed restrictions on who can get them. Do you know anything about that? The Cook County Clerk's Office says:
"Under state law, you may legally obtain a copy of a death certificate if you are a relative or can prove a financial interest in an individual's death."
What happens if you are doing historical research and aren't a relative??