Barto and Mann: Dewey Barto (né Stewart Steven Swoyer; June 10, 1896 – January 31, 1973[1]) and George Mann (December 2, 1905 — November 22, 1977[2]), known as the "laugh kings" of vaudeville,[3] were a comedic dance act from the late 1920s to the early 1940s. Their acrobatic, somewhat risqué, performance played on their disparities in height; Barto was 4'11" and Mann was 6'6".