Otis L. Guernsey Jr., editor of the “Best Plays” series for 36 years, died of pancreatic cancer Wednesday May 2 at his home in Woodstock, Vt. He was 82 years old.Guernsey worked at the New York Herald Tribune for 19 years, rising from copy boy to become a film and theater critic there. As arts editor of the now-defunct newspaper, he hired and mentored Walter Kerr. Following his newspaper career, Guernsey was a consultant to CBS, where he was involved with bringing Arthur Miller’s “Death of a Salesman” to television. Guernsey was inducted into the Theatre Hall of Fame earlier this year. He was also a founding member of the American Theatre Critics Assn. and served as chairman of the New York Film Critics Circle. He is survived by wife Dorianne and two brothers.