Kelly became a player-coach and later a player/coach/owner with the Dodgers football club, the successor to the Dayton Triangles, a charter member of the NFL.

[5] By Kelly's UK career's end he was dubbed "the fastest man in the South," running a 100-yard dash in 9.8 seconds.

[8] Kelly was a part of New York's cafe society and was frequently in attendance at the Stork Club, "21", and El Morocco.

During World War II, Kelly was recruited by the FBI to travel to Cuba, Mexico, Peru, Chile and Argentina to track the activities of wealthy German expatriates helping the Nazi cause.

After the war, Kelly pursued a career as an investment banker, Florida real estate investor and became a champion amateur golfer.