At this time Mingus was working regularly with a piano-less quartet featuring Eric Dolphy, Ted Curson and Dannie Richmond, as heard on the Charles Mingus Presents Charles Mingus album also recorded in November 1960. The Mingus album features one track, “Stormy Weather”, recorded by the same quartet, plus two tracks recorded by a larger group featuring piano and additional horns. [source]

Charles Mingus – Bass
Eric Dolphy – Alto sax
Ted Curson – Trumpet
Dannie Richmond – Drums