After his football career, Quigley became a successful stockbroker and settled in La Jolla, California. There he formed the idea of establishing a horse racetrack on the Del Mar Fairgrounds, inspired by the success of the Santa Anita Park racetrack in Arcadia, California that opened on Christmas 1934. He subsequently won over Bing Crosby and on May 6, 1936, Quigley and Crosby filed for articles of incorporation with California and founded the Del Mar Turf Club. Quigley became the original General Manager / Director of Racing of the Del Mar racetrack, which opened on July 3, 1937.[4][5] Quigley was still vice president and general manager of the Del Mar Turf Club when he died at the age of 49 in Pasadena. He is interred at the Waterside Cemetery in Marblehead, Massachusetts near his birthplace.[2]