The WWE Hall of Fame has to date not inducted a referee (we aren't counting Teddy Long), and the belief by many is that if they do it would be Earl Hebner. If that doesn't happen, then perhaps it would be Nick Patrick who was the son of Jody Hamilton who wrestled professionally as The Assassin. Patrick trained to be a wrestler himself, but an injury changed his course into refereeing, and he would soon be named the Senior Referee by WCW in the mid-'90s.
In terms of training, Sgt. Buddy Lee Parker is easily in the top twenty-five ever, but in regards to in-ring accomplishments, we realize that is a stretch to put him on here even if we were the extend this list to 2,000.
Joe Savoldi had a claim at one time as the World Heavyweight Champion, which was a long way away from his humble beginnings in the hills of Italy. Savoldi immigrated as a pre-teen to Michigan and would later play football under the famous Knute Rockne at Notre Dame. Savoldi fell into Professional Wrestling and was praised for his dropkick, a unique move at the time. Under the guidance of Billy Sandow, he beat Jim Londos in controversial fashion (perhaps a double-cross) in 1933 and was recognized in some circles as the Heavyweight Champion. He would lose that claim in a match to Jim Browning but had high profile rematches against Londos to huge crowds. He couldn’t beat Londos again but he was a draw for a decade and a half to come.