He was born in Georgia but grew up near Newark, New Jersey. Early on, he worked with Max Roach and Dizzy Gillespie, and he also appeared on the landmark recording Horace Silver and the Jazz Messengers (1955). Other appearances as a sideman in the 1950s included dates with Lee Morgan, Art Blakey, Curtis Fuller, and Sonny Clark.
Mobley is mainly remembered for his twenty or so albums for Blue Note Records as a leader, starting in 1955. These included some classic dates that epitomized the Blue Note sound of the era, including Soul Station and Roll Call (1960), Workout and Another Workout (1961), and The Turnaround and Dippin’ (1965). One of my favorite tunes from the period is “Dig Dis” from Soul Station, which displays the kind of tasty, cool groove that Mobley could achieve. He stopped playing in the 1970s because of lung problems and he died of pneumonia in 1986.