American jazz pianist (also vibraphonist). Born : July 22, 1909 in Chicago, Illinois (or) in Venice, Italy. Died : March 27, 1952 in Elgin, Illinois. (Mental hospital)
Simpson played with : Augustus Zinky Cohn, Bernie Young, Arthur Sims Creole Roof Orchestra, Jabbo Smith (Jabbo Smith's Rhythm Aces), Erskine Tate and others.