Donny Hathaway – Extension Of A Man

Arranged By, Written-By, Electric Piano, Conductor, Orchestra – Donny Hathaway
Bass [Uncredited], Orchestra – Russ Savakus
Bass [Uncredited], Orchestra – Stanley Clarke
Cello [Uncredited], Orchestra – George Ricci
Cello [Uncredited], Orchestra – Kermit Moore
Cello [Uncredited], Orchestra – Charles McCracken
Choir – Myrna Summers & The Interdenominational Singers
Clarinet, Soloist, Orchestra – Vincent Abato
Concertmaster – Gene Orloff
Drums [Uncredited], Orchestra – Grady Tate
Flute [Uncredited], Orchestra – Hubert Laws
French Horn [Uncredited], Orchestra – Julius Watkins
French Horn [Uncredited], Orchestra – Jim Buffington
French Horn [Uncredited], Orchestra – Tony Miranda
Harp [Uncredited], Orchestra – Gloria Agostini
Oboe, Soloist, Orchestra – Henry Schuman
Orchestra – R. Davis (9)
Orchestra – H. Jones (6)
Orchestra – A. Clarke (4)
Orchestra – M. Hencew
Orchestra – E. Carmen (2)
Orchestra – W. Smith (5)
Orchestra – Jesse Levy
Orchestra – Joseph Malignaggi
Producer – Arif Mardin
Reeds [Uncredited], Orchestra – Seldon Powell
Reeds [Uncredited], Orchestra – Romeo Penque
Reeds [Uncredited], Orchestra – William Slapin
Trombone [Uncredited], Orchestra – Paul Faulise
Trombone [Uncredited], Orchestra – Wayne Andre
Trombone [Uncredited], Orchestra – Garnett Brown
Trombone [Uncredited], Orchestra – Dominick Gravine
Trumpet [Uncredited], Orchestra – Joe Newman
Trumpet [Uncredited], Orchestra – Ernie Royal
Trumpet, Soloist, Orchestra – Marvin Stamm
Tuba [Uncredited], Orchestra – Don Butterfield
Viola [Uncredited], Orchestra – Harold Coletta
Violin [Uncredited], Orchestra – David Nadien
Violin [Uncredited], Orchestra – Emanuel Green
Violin [Uncredited], Orchestra – Julien Barber
Violin [Uncredited], Orchestra – Harry Lookofsky
Violin [Uncredited], Orchestra – Theodore Israel
Violin [Uncredited], Orchestra – Julius Held
Violin [Uncredited], Orchestra – Sanford Allen
Violin [Uncredited], Orchestra – Noel Dacosta

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

Arranged By, Written-By, Electric Piano, Lead Vocals – Donny Hathaway
Bass – Willie Weeks
Drums – Ray Lucas
Guitar – Cornell Dupree
Guitar – Keith Loving
Guitar – David Spinozza
Percussion – Ralph MacDonald
Producer – Arif Mardin

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

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

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

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

Acoustic Guitar – Keith Loving
Alto Saxophone – Phil Bodner
Arranged By, Written-By, Electric Piano – Donny Hathaway
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 – Cornell Dupree
Producer – Arif Mardin
Tenor Saxophone – Seldon Powell
Trombone – Tony Studd
Trumpet – Marvin Stamm
Tuba – Don Butterfield

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

Arranged By, Producer – Arif Mardin
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
Producer – Jerry Wexler
Written-By – Leon Ware