Meiklejohn began his career in 1921 in his native Los Angeles as a booking agent for 80 different vaudeville acts. In 1939 he sold his agency to the Music Corporation of America (MCA) when the corporation opened in Hollywood and joined them as vice-president in charge of setting up their motion picture division.
Meiklejohn began his career in 1921 as a booking agent for multiple vaudeville acts in Los Angeles. He then sold his agency to MCA in 1939 when they expanded to Hollywood, and joined them as vice-president in charge of establishing their movie division.