Now here is a bit of a strange one...
A group of Royal Canadian Engineers at Camp Borden in 1940
What the Hell's Angels (section three) is all about I don't know, it was several years before the founding of the motorcycle club.
From what I know, The Hell's Angels Motorcycle Club originally started as former WWII US aircrew who got together after the war. Had not heard of an actual air group with that name though.