New Orleans Bootblacks - Columbia 14337 (1926)

Lil Hardin Armstrong set up recording dates for what basically was Louis Armstrong's Hot Five/Seven ensemble with Columbia Records...only one problem, Louis was tethered to a contract with OKeh.

So, she tapped George Mitchell to replace Satch on cornet. More information on him here.

Here are two of the sides that were waxed in Chicago on July 14, 1926.

Personnel: George Mitchell c / Kid Ory tb / Johnny Dodds cl / Joe Clark as / Lil Armstrong p / Johnny St. Cyr bj.

New Orleans Wanderers - Columbia 698 (1926)

From wikipedia...

The New Orleans Wanderers was the name under which Lil Hardin recorded with members of Louis Armstrong's Hot Five on a 1926 session for Columbia Records. Armstrong himself was unable to appear since he was under contract to Okeh, although he collaborated with Hardin on three of the four songs. His place was taken by George Mitchell. Four further songs were released by the same musicians under the name New Orleans Bootblacks.

George Mitchell c / Kid Ory tb / Johnny Dodds cl / Joe Clark as (except on PSB) / Lil Armstrong p / Johnny St. Cyr bj.

Recorded in Chicago on July 13, 1926.