Probably David Knott. He was the head projectionist of the theater I worked at when I was being trained to be a projectionist. Under David it took around three months before we could have a shift alone. Chris and I were trained under David. After David left management wanted training to be done in a week since we were paid for training. The booth obviously went to shit.
I learned how to manage people and how to make sure people got the best presentation of a film. Then Regal bought us and it was all about spending the least amount of money and fuck them. They already bought a soda.
Fun fact. David was into making swords by hand. They used one of his in The Princess Bride.