Frank Leahy

Coach of American football, born in Portland, Oregon, USA. A former Notre Dame tackle under Knute Rockne, he returned to his alma mater and won five national championships in eleven seasons (1941–53).

Frank William Leahy (1908–1973) was an American collegiate football coach, who earned the nickname "The Master".

Leahy was a tackle on Knute Rockne's last three teams, graduating from Notre Dame in 1931. Leahy took over as line coach at Fordham in 1933 and stayed until 1938 under Jim Crowley, coaching the famed Seven Blocks of Granite from 1935-37 when the Rams lost only two combined games. In 1939, he went to Boston College as head coach, guiding the Eagles to a 20-2 record including an undefeated 1940 season capped off by a Sugar Bowl victory and a share of the national championship. Leahy went to his alma mater, Notre Dame, as head coach the next season. He returned to Notre Dame for the 1946 season in which Notre Dame won the national championship after playing rival Earl Blaik's Army team to a scoreless tie at Yankee Stadium in New York. Leahy remained at Notre Dame until resigning for health reasons in 1954. While at Notre Dame, Leahy had six undefeated seasons, five national championship teams and an unbeaten string of 39 games in the late 1940s.

In 1949 he wrote the only detailed book on the T-formation, "Notre Dame Football T-Formation".