Joe Pitts’ Musical Bar was located in his “hostelry,” the Pitts Hotel. Joe Pitts’ and Watts’ Zanzibar were mentioned in the August 24, 1946 issue of Billboard.
From Jazz.com:
Ray Bryant and [Benny] Golson played regularly in late 1946 with bassist Gordon “Bass” Ashford. They performed one night a week at Joe Pitt’s Musical Bar, and weekends at the Caravan Republican Club, for as long as six months at a stretch.
All That Philly Jazz 