I only saw Mingus once, on a European tour in 1974 at the Hammersmith Odeon, London. Cannonball Adderley was also on the bill.
The only member of the band that I am absolutely certain was there is Hamiet Bluiett, but I guess Richmond, Pullen and Adams were there as well.
I would love to know the exact lineup on that tour. If anyone knows please let me know.
Sorry to say but my recollections are that the band sounded very tired and I was very disappointed. I was about 10 years too late I guess.