The making ceremonies definitely weren't started during O'Brien's era, they've always been around.
People base that entire myth off of one single Giancana wiretap.
Honestly it's a whatever. Everyone knows (at least with the major players) who was made. Whether they did the finger prick and saint burning is really irrelevant IMO.
You think JB or Sam did it? Doubtful.
And in some ways NY didn't recognize them from what you read. However they knew they had respect them (Capone) and put them on the Commision. Whatever transpired after that who knows with the Outfit.
