Lawrence Revere, born Griffith K. Owens (d. 1977), was a former casino pit-boss and the "Master of Blackjack." He is most famous for the co-development of several blackjack systems and for publishing Playing Blackjack As A Business in 1969. During the 1960s and 1970s, Revere, also known as Leonard "Specs" Parsons and Paul Mann, was considered a blackjack expert. After his competitive career ended, he retired to teach blackjack and gambling. Revere died on April 23, 1977 after a bout with lung and liver cancer.