Jelly Roll Morton

Jelly Roll Morton and His Red Hot Peppers, Chicago, September 1926, Jelly Roll Morton is shown lecturing his very first Red Hot Peppers band. Standing left to right: Omer Simeon, Andrew Hilaire, John Lindsay, Johnny St. Cyr, Kid Ory and George Mitchell - courtesy of Ate van Delden

Ferdinand Joseph LaMothe (October 20, 1885 – July 10, 1941), known professionally as Jelly Roll Morton, was an American ragtime and early jazz pianist, band-leader and composer.

Source: doctorjazz | google

Harry Richman

Harry Richman (10 August 1895–3 November 1972) was an American entertainer. He was a singer, actor, dancer, comedian, pianist, songwriter, bandleader, and night club performer, at his most popular in the 1920s and 1930s.

Puttin’ On the Ritz (Irving Berlin) — published in 1929 and introduced by Harry Richman in the musical film Puttin’ on the Ritz (1930).

Billy Meyers

Billy Meyers band-leader,  1920s 1930s

 Source: tumblr.