When did this interesting alto saxophonist pass away? Here are the recording I know of: Teddy Charles - Coolin' 4/14/57 (one Jenkins original) Hank Mobley - Hank 4/21/57 Jackie McLean - John Jenkins: Alto Madness 5/3/57 (2 Jenkins originals) Paul Quinichette - On The Sunny Side 5/27/57 Cliff Jordan 6/2/57 (one Jenkins original) John Jenkins/Clifford Jordan/Bobby Timmons 7/26/57 (2 Jenkins originals) John Jenkins With Kenny Burrell 8/11/57 (3 Jenkins originals) John Jenkins - Jazz Ey