George Walter Mason entered the auto industry in 1913 with Studebaker. A year later, he joined Dodge, leaving in 1915 to become purchasing agent for the American Auto Trimming Company. During World War I Mason acted as a coordinator for the Army Ordnance Department. In 1919 accepted a position with Irving National Bank in New York. In 1921 Mason returned to the auto industry, taking a position with Maxwell-Chalmers Corporation, then being reorganized by Walter P. Chrysler. A year later he was named general works manager, holding that position until leaving Chrysler to become vice president of Copeland Products, Incorporated, in 1926. Although elected president of Copeland in 1927, Mason in 1928 left to become president of Kelvinator Corporation. In 1936, an offer of the presidency of Nash Motors ultimately resulted in the formation of the Nash-Kelvinator Corporation with Mason as president and Charles W. Nash board chairman. With Nash’s death in 1948, Mason, at that time president of the Automobile Manufacturers Association, also became board chairman of Nash-Kelvinator. When the Nash-Kelvinator-Hudson Motor Car Company merger in 1954 was completed, Mason became president and chairman of the newly formed American Motors Corporation.