 After leaving the military, George played with Charlie Parker, Sonny Criss, Teddy Edwards, Hampton Hawes and other musicians who were in L.A. George then spent five years in San Francisco (1948–53), often appearing at the Bop City jazz club and working with Dexter Gordon, Wardell Gray, Billie Holiday and Sonny Clark, among others.According to Roach, Morrow had been "free-lancing around San Francisco clubs" when they hired him to play with them after having rejecting two other bassists.He appeared on all of the studio albums made the Clifford Brown-Max Roach Quintet.