Plenty of people saw Hitler. I mean, there are videos of him talking to huge crowds. In Vienna, he held an anschluss speech from the hofburg palace balcony (heldenplatz). Many people saw him, but it kinda wasn’t really a thing to brag about after ww2.
Also, the part about hiding from nazis is a bit strange. Brother was enlisted - so they were not jewish, right? They were also not hiding, or he would not have to go, right?
but really, what’s the obsession with seeing a politician from that era with her own eyes? I once saw Gorbachow with my own eyes, less than 10 meters away from me. So... what?