He served as the 11th head football at Fairmount College—now known as Wichita State University—in Wichita, Kansas and he that position for the 1919 season, comping a record of 2–6–2.
[1] Cassidy was also the head basketball coach at Fairmount for one season, in 1919–20, tallying a mark of 8–8.
Cassidy was an alumnus of Fairmount College and Ottawa University.
[2] He served in France as a United States Army infantry officer during World War I. Cassidy died on April 2, 1963, at Palomar Memorial Hospital California in Escondido, California.
This biographical article relating to a college football coach first appointed in the 1910s is a stub.