Cool played center for the Big Red of Cornell University from 1913 to 1915 and was selected as an All-American after his senior year in 1915.
A native of Pittston, Pennsylvania, Cool attended the Wyoming Seminary, the Sturgis Tutoring School and the Manlius Academy before enrolling in the College of Agriculture at Cornell University.
Three players from the 1915 Cornell team were selected as All-Americans—Cool, quarterback Charley Barrett and end Murray Shelton.
[2] Cool was known as a football "iron man" who played every minute of every game for two seasons with Cornell.
[1] When the United States entered World War I, Cool enlisted in the U.S. Army, serving as an instructor in the School of Fire at Fort Sill, Oklahoma.