[9] After a successful season with Vanities, the duo started touring again in February 1929 and began headlining for Fanchon and Marco's Fantasma Idea in April 1929.
[10] They toured Europe in 1931 and 1934,[11] were on the inaugural program of Radio City Music Hall in 1932,[12] and appeared in the 1933 film, Broadway Through a Keyhole.
In October 1927, The Jazz Singer, the first feature-length motion picture with synchronized dialogue sequences, opened at the Warners’ Theatre, heralding the beginning of the end for vaudeville as a popular mode of American entertainment.
Barto and Mann were headliners in theaters and clubs throughout the late 1920s and the 1930s, increasingly sharing their performances with feature films.
[17] Dewey Barto and George Mann were listed as appearing as "Mitch and Irv" in a program at the Manchester Avenue School in Los Angeles on March 12, 1956.