Donny Hathaway – Extension Of A Man

Choir – Myrna Summers & The Interdenominational Singers
Clarinet [Clarinet Solo], Soloist [Clarinet Solo] – Vincent Abato
Composed By – Donny Hathaway
Concertmaster – Gene Orloff
Conductor – Donny Hathaway
Electric Piano – Donny Hathaway
Oboe [Oboe Solo], Soloist [Oboe Solo] – Henry Schuman
Performer – Richard Davis (2)
Performer – Julius Watkins
Performer – Selwart Clarke
Performer – Paul Faulise
Performer – George Ricci
Performer – H. Jones (6)
Performer – M. Hencew
Performer – Hubert Laws
Performer – E. Carmen (2)
Performer – Grady Tate
Performer – Warren Smith
Performer – Kermit Moore
Performer – Gloria Agostini
Performer – David Nadien
Performer – Emanuel Green
Performer – Charles McCracken
Performer – Wayne Andre
Performer – Julien Barber
Performer – Joe Newman
Performer – Seldon Powell
Performer – Harold Coletta
Performer – Garnett Brown
Performer – Romeo Penque
Performer – Jim Buffington
Performer – Russ Savakus
Performer – Harry Lookofsky
Performer – Dominick Gravine
Performer – Ernie Royal
Performer – Arthur Clarke
Performer – Tony Miranda
Performer – Don Butterfield
Performer – Theodore Israel
Performer – Julius Held
Performer – Jesse Levy
Performer – Sanford Allen
Performer – Noel Dacosta
Performer – William Slapin
Performer – Joseph Malignaggi
Trumpet [Trumpet Solo], Soloist [Trumpet Solo] – Marvin Stamm

Bass – Willie Weeks
Drums – Ray Lucas
Guitar – Cornell Dupree
Guitar – David Spinozza
Lead Vocals, Electric Piano – Donny Hathaway
Trumpet [Trumpet Solo], Soloist [Trumpet Solo] – Marvin Stamm
Written-By – Donny Hathaway
Written-By – Edward Howard

Bass – Willie Weeks
Drums – Ray Lucas
Guitar – Cornell Dupree
Guitar – Keith Loving
Guitar – David Spinozza
Lead Vocals, Electric Piano – Donny Hathaway
Percussion – Ralph MacDonald
Written-By – Donny Hathaway
Written-By – Franklin Moss
Written-By – Walter Lowe

Bass – Willie Weeks
Drums – Ray Lucas
Electric Piano – Donny Hathaway
Guitar – Cornell Dupree
Guitar – Keith Loving
Percussion – Ralph MacDonald
Written-By – Donny Hathaway

Drums – Fred White
Guitar – Hugh McCracken
Guitar – Cornell Dupree
Lead Vocals, Piano, Electric Piano, Organ – Donny Hathaway
Tenor Saxophone – David "Fathead" Newman
Written-By – Al Kooper

Clarinet – Seldon Powell
Drums – Fred White
Guitar – John Bishop
Guitar – Phil Upchurch
Lead Vocals, Electric Piano, Piano, Bass – Donny Hathaway
Soloist [Guitar Solo] – Phil Upchurch
Tambourine – Myrna Summers & The Interdenominational Singers
Trombone – Garnett Brown
Trumpet – Joe Newman
Written-By – Donny Hathaway

Backing Vocals – Myrna Summers & The Interdenominational Singers
Bass – Willie Weeks
Drums – Ray Lucas
Guitar – Cornell Dupree
Guitar – Keith Loving
Lead Vocals, Electric Piano – Donny Hathaway
Written-By – Ken Williams
Written-By – J.R. Bailey

Acoustic Guitar – Keith Loving
Alto Saxophone – Phil Bodner
Backing Vocals – Richard Wells (3)
Backing Vocals – Jimmy Douglass
Backing Vocals – Mario Medious
Backing Vocals – William McCollum
Bass – Willie Weeks
Drums – Ray Lucas
Electric Guitar, Soloist [Electric Guitar] – Cornell Dupree
Electric Piano – Donny Hathaway
Tenor Saxophone – Seldon Powell
Trombone – Tony Studd
Trumpet – Marvin Stamm
Tuba – Don Butterfield
Written-By – Donny Hathaway

Bass – Gordon Edwards
Clarinet – Phil Bodner
Clarinet – Seldon Powell
Drums – Grady Tate
Guitar, Banjo – Hugh McCracken
Lead Vocals, Electric Piano, Piano [Tack] – Donny Hathaway
Percussion – Ralph MacDonald
Trombone – Tony Studd
Trumpet – Marvin Stamm
Tuba – Don Butterfield
Written-By – Danny O'Keefe

Backing Vocals – Myrna Smith
Backing Vocals – Cissy Houston
Backing Vocals – Sylvia Shemwell
Bass – Stanley Clarke
Drums – Rick Marotta
Guitar – David Spinozza
Lead Vocals, Piano – Donny Hathaway
Written-By – Leon Ware