There's a subscription based website, newspaperarchive.com, that is available on my local libraries' computers. I found the obit on that website.
I don't understand why I can't find John Sr. and Bertha in the censuses, and why John Sr. doesn't show up in the World War I draft registration.
I wonder if John Sr. wasn't married before, and then married Bertha in the US?
By the way, I think the Catherine Varga you have listed as having died in 1996 is someone else, not John and Bertha's daughter. On ancestry, there is an Ohio death record for Margaret Catherine (Hudec) Vargo, born 15 Oct 1923, died 18 Oct 1996, father's name Hudec, mother's name Michalek. According to the obits I posted, John and Bertha's daughter Margaret married a Hudak.