Biography
James Minter Knepper (November 22, 1927 – June 14, 2003) was an American jazz trombonist. In addition to his own recordings as leader, Knepper performed and recorded with Charlie Barnet, Woody Herman, Claude Thornhill, Stan Kenton, Benny Goodman, Gil Evans, Thad Jones and Mel Lewis, Toshiko Akiyoshi and Lew Tabackin, and, most famously, Charles Mingus in the late-1950s and early-1960s.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.

Sketches Of Spain
1960

Mingus Ah Um
1959

Blues & Roots
1960

Out Of The Cool
1961

Miles Davis At Carnegie Hall
1962

The Jazz Experiments Of Charlie Mingus
1957

The Smithsonian Collection Of Classic Jazz
1973

Tijuana Moods
1962

Me Myself An Eye
1979

Guitar Forms
1965

Oh Yeah
1962

New York, N.Y.
1959

The Clown
1957

Road Time
1976

Newport Rebels
1961

Outward Bound
1960

East Coasting
1957

New Tijuana Moods
1986

Cumbia & Jazz Fusion
1978

That Girl From Ipanema
1977

Better Git It In Your Soul
1971

A Genuine Tong Funeral
1968

New Mann At Newport
1966

The Incredible Kai Winding Trombones
1961
Credited work
2,126 releases · 243 albums · active 1956–2026
- Performance · 2,708
- Other credits · 108
- Engineering · 2
Studios: Nola Recording Studios · Atlantic Studios · Columbia 30th Street Studio · Van Gelder Studio, Englewood Cliffs, New Jersey
