Credits

Henry Gray: Piano
Steve Winwood: Organ
Eric Clapton: Guitar
J.T. Brown: Saxophone
Sam Lay: Drums
Buddy Guy: Guitar, Bass
Otis Spann: Piano
Willie Dixon: Bass, Co-Producer
Howlin' Wolf: Guitar, Harmonica, Piano, Vocals
Chris Morris: Compilation, Liner Notes
Willie Johnson: Guitar
Bill Wyman: Bass
Lafayette Leake: Piano
Hubert Sumlin: Guitar
Jimmy Rogers: Guitar
Charlie Watts: Drums
James Green: Bass
Andrew McMahon: Bass
Eddie Shaw: Saxophone
Albert Williams: Piano
Little Smokey Smothers: Guitar
Fred Below: Drums
Freddy King: Guitar
Jody Williams: Guitar
Bill Inglot: Mixing, Remix
Mark Wilder: Disc Transfers
Dick Shurman: Compilation, Liner Notes
Doug Schwartz: Reissue Engineer
Andy McKaie: Compilation Producer, Remix Assistant
Ralph Bass: Producer
John Strother: Mixing Assistant
Phil Chess: Co-Producer
Leonard Chess: Co-Producer
Norman Dayron: Producer
S.P. Leary: Drums
Earl Phillips: Drums
Jeffrey M. Carp: Harmonica
Jerome Arnold: Bass
Otis Smokey Smothers: Guitar
Donald Hankins: Saxophone
Abb Locke: Saxophone
Alfred Elkins: Bass
Junior Blackman: Drums
Steven Lasker: Disc Transfers
Billy Duncan: Saxophone
Willie Harris: Guitar
Willie Steele: Drums
L.C. Hubert: Piano
Hosea Lee Kennard: Piano
L.D. McGhee: Guitar
Bill Johnson: Piano
Cassell Burrows: Drums
Lee Eggleston: Piano
Arnold Rogers: Saxophone