The B. F. Keith Circuit was a chain of vaudeville theaters in the United States and Canada owned by Benjamin Franklin Keith for the acts that he booked.
History
In 1928 the theaters owned by Benjamin Franklin Keith and Edward Franklin Albee II and Martin Beck's Orpheum Circuit merged to form the Keith-Albee-Orpheum circuit. The combined theater chain now had over 700 theaters in the United States and Canada. They had a combined seating capacity 1.5 million. 15,000 vaudeville performers will be booked through the new entity.
References
B. F. Keith Circuit Wikipedia(Text) CC BY-SA