He eventually founded "Dumont's Minstrels", around 1895/96, after purchasing the Eleventh Street Opera House in Philadelphia.

[4] He died in the box office of the theatre on March 17, 1919, during the opening number of that afternoon's matinee show.

Dumont's 1899 work "The Witmark amateur minstrel guide and burnt cork encyclopedia" is a valuable resource on the history of American minstrelsy.

Dumont wrote in 1915 that he had been the first to perform two classic 19th century standards, "Silver Threads Among the Gold", and "When You and I Were Young, Maggie".

"[8] Chappelle was the first black owner of a vaudeville company with an all-black cast, and utilized upscale performers that helped him dominate the southwest and southeastern areas of the U.S. and also traveled to New Jersey, New York, Washington, D.C., and Baltimore.