Bass – Butch Warren (tracks: A2, A3), Paul Chambers (tracks: A1, B1 to B3)
Drums – Philly Joe Jones (tracks: A2, A3), Billy Higgins (tracks: A1, B1 to B3)
Photography By [Cover Photo] – Francis Wolff
Piano – Barry Harris (tracks: A1, B1 to B3), Herbie Hancock (tracks: A2, A3)
Recorded By – Rudy Van Gelder
Saxophone [Tenor] – Hank Mobley
Trumpet – Donald Byrd (tracks: A2, A3), Freddie Hubbard (tracks: A1, B1 to B3)
Written-By – Hank Mobley (tracks: A1, A2, B1 to B3)
Bass – Butch Warren (tracks: A2, A3), Paul Chambers (tracks: A1, B1 to B3)
Design [Cover] – Reid Miles
Drums – Philly Joe Jones (tracks: A2, A3), Billy Higgins (tracks: A1, B1 to B3)
Liner Notes – Del Shields
Photography By [Cover Photo] – Francis Wolff
Piano – Barry Harris (tracks: A1, B1 to B3), Herbie Hancock (tracks: A2, A3)
Producer – Alfred Lion
Recorded By [Recording By] – Rudy Van Gelder
Tenor Saxophone – Hank Mobley
Trumpet – Donald Byrd (tracks: A2, A3), Freddie Hubbard (tracks: A1, B1 to B3)
Notes
Recorded on March 7, 1963 (#2 & 3) and February 5, 1965 (all others) at the Van Gelder Studio, Englewood Cliffs, New Jersey. New York, USA adress on label. Ear and RVG in dead wax.Recorded on March 7, 1963 (A2 & A3) and February 5, 1965 (all others).