Amos Alonzo Stagg Jr.

Amos Alonzo "Lonnie" Stagg Jr. (April 11, 1899 – May 17, 1996), sometimes called Young Stagg, Stagg played football as a quarterback under his father on the Chicago Maroons football team in the early 1920s,

Stagg began his career as a coach in 1924 at Chicago serving under his father. When his father left the University of Chicago in 1933, Stagg retained his post there. In 1935, he was hired as the head football coach at Susquehanna University. He served as Susquehanna's head football coach from 1935 to 1942 and from 1946 to 1954, compiling a record of 45–69–7. Stagg was also the head basketball coach at Susquehanna from 1935 to 1951, tallying a mark of 115–149. Stagg also served as Susquehanna's athletic director, track and tennis coach, director of the intramural program and an instructor of physical education and health.

Stagg twice coached against his brother Paul. In 1935, Amos Jr.'s Susquehanna Crusaders and Paul's Moravian Greyhounds played to a 0–0 tie in Bethlehem, Pennsylvania. The following year, Moravian beat Susquehanna, 26–16, in Selinsgrove. His wife's name was Arvilla.

In 1981, when his father's status as the all-time winningest college football coach was threatened by Bear Bryant, Stagg petitioned the NCAA to transfer 21 of his coaching victories at Susquehanna to his father. Stagg and his father had coached the Susquehanna team together from 1947 to 1952. The NCAA denied the request, but Young Stagg told the press that the credit belonged to his father: "Of course he deserves them. We were co-equals but he was in charge. Everybody knew that." During the years in question, Susquehanna sent its records to the NCAA listing Young Stagg as the head coach, but some programs and guides listed the two as "co-coaches" or identified Stagg Sr. as an "advisory coach."

Stagg died in 1996 at age 97. His last residence was in Grand Rapids, Michigan.