Stefan was born 26 Oct 1893 in Szemlak, Arad, Hungary ( now in Romania). He left Hungary in 1929 and came to Canada. I am looking for any information as to his past.
Unfortunately, there do not appear to be records available online within several generations of that timeframe.
There's something weird going on in the gazetteers versus the FS catalog: the one denomination that the gazetteers agree *wasn't* local in Szemlak (Roman Catholic) is the one denomination that FamilySearch's catalog lists records from in Szemlak.
In more detail: the gazetteers indicate that Szemlak had a Greek Catholic, Reformed, Lutheran, Greek Orthodox, and Jewish congregation locally, while Roman Catholic residents were recorded in nearby (Magyar-)Pécska. The 3rd military survey maps on Mapire indicate at least three church buildings in Szemlak, but I've never been able to find a legend for those maps, so I don't know what denominations the symbols mean.
Meanwhile, searching the FS Catalog for Szemlak yields a page for the "Roman Catholic parish register for Szemlak" (https://www.familysearch.org/search/catalog/334654), with baptisms, marriages, and births 1829-1852 on one film, and a "secondary copy" (date range not specified in the catalog) on another film. Poking about on the two films, they appear to be two different filmings of the same registers, which are definitely from Szemlak, but the religion/denomination was never mentioned on any of the pages I checked. (They're written variously in German, Latin, and Hungarian, and the names are mostly German and Hungarian with some Slavic and probably-Vlach mixed in. Given the use of both German and Latin, they're unlikely to be the Reformed church registers, and given the use of Hungarian, they're unlikely to be Greek Orthodox -- but then again, they cover the revolutionary timeframe , so nothing is ruled out.)
I do know he was apprenticed to a tailor in Vienna after he finished school. He was enlisted to the Hussars in WW1.