RCA did not provide full details of the various sessions on the original LP liner notes.
Art Pepper does not play on the first session (also recorded in May 1960).
Musicians on that session are:
Shorty Rogers, Pete Jolly, Joe Mondragon and Frank Capp with a saxophone quintet (Richie Kamuca, Harold Land, Bill Perkins on tenor and Bill Holman and Bill Hood on baritone)