bass Joe Benjamin
cornet Nat Adderley
cover [design] Ken Deardoff
drums Herbie Lovelle
engineer Ray Fowler
tracks a1, a2, a4 to b4 flugelhorn Clark Terry
mastered by Jack Matthews
photography by [back-liner] Lawrence N. Shustak
tracks a3 to b2 piano Jimmy Jones
tracks a1, a2, b3, b4 piano Tommy Flanagan
producer Cannonball Adderley
tenor saxophone Budd Johnson
tracks a3 trumpet Clark Terry
trumpet Harry Edison
trumpet Ray Nance
tracks a4, b3 violin Ray Nance
Record Company Bill Grauer Productions Inc.
Recorded in New York; August 22 and September 6, 1960.

The list of musicians on top of the back cover credits Nat Adderley and Clark Terry on trumpet, but this is corrected in the liner notes below that Adderley plays cornet on all tracks and Terry plays the flugelhorn on all tracks but one.

Tommy Flanagan played on the first session date, and Jimmy Jones on the later session.
The liner notes don't specify in which tracks the two pianists play, the info here has been collected from internet source: jazzdisco.org