[1] He graduated from Holy Cross in 1922 and returned to the school as assistant athletic director in 1928.
He later served as public relations officer at Cushing General Hospital and Fort Devens.
[2] Holy Cross' athletic director Tom McCabe died in 1943 and when Flynn returned from the military was appointed his successor.
[3] Notable athletes who attended Holy Cross during this time included Bob Cousy, Tom Heinsohn, Togo Palazzi, George Kaftan, Jack Foley, Mel Massucco, and Paul Harney.
[4] Flynn retired on July 1, 1966, and was inducted into the Holy Cross Hall of Fame that same year.