James Alfred Conrad Cammack Jr. (born 1956-04-15) is an African American bassist, from the region of Cornwall, NY.

He is the bassist for the Ahmad Jamal Trio, which includes the founder, Ahmad Jamal

Ahmad Jamal

Ahmad Jamal is an innovative and influential American jazz pianist, composer, and educator. According to Stanley Crouch, Jamal is second in importance in the development of jazz after 1945 only to Charlie Parker...

 and drummer, Idris Muhammad

Idris Muhammad

Idris Muhammad is a jazz drummer. He changed his name in the 1960s upon his conversion to Islam. He is known for his funky playing style. He has released a number of albums as leader, and has played with a number of jazz legends including Lou Donaldson, Johnny Griffin, Pharoah Sanders and Grover...

. Cammack both records and tours with the trio. Mr Jamal's trio essentially became a quartet with the addition of percussionist Manolo Badrena at the time of the release of Jamal's "Rossiter Road". The drummer Kenny Washington was added in 2010 on the recording "A Quiet Time".