Wellington Mara of the New York Giants, one of the NFL's most influential owners for more than a half century and the last of the league's founding generation, died Tuesday. He was 89. Mara, who was elected to the Pro Football Hall of Fame in 1997, died of cancer at his home in Rye, the team said. Mara's influence went far beyond the Giants. He clearly was one of the most important figures in NFL history. ``Wellington Mara represented the heart and soul of the National Football League,'' NFL commissioner Paul Tagliabue said. ``He was a man of deep conviction who stood as a beacon of integrity.''