Jack Twyman was a Hall of Fame basketball player who once scored 59 points in an N.B.A. game. In 1959-60 he and Wilt Chamberlain became the first players to average more than 30 points a game in a season. He went on to become an analyst for the N.B.A. game of the week on ABC and a food company executive who pocketed more than $3 million when he sold the company in 1996.