Any idea who’s the drummer and bass player might be?

[Hardbopjazz]

Monk, Coleman Hawkins, Don Byas, Denzel Best.  Who’s on bass and drums? 

[T.D.]

You mean trumpet (Benny Harris) and bass?

Eddie Robinson on bass?

If correct, credit to Messrs. Google; I didn't recall. The  band is named in Kelley's Monk bio, which I've read but no longer own.

See e.g. https://www.richardvacca.com/on-march-18-1944/

The relevant excerpt from Kelley is also on Google Books.

Edited August 14, 2021 by T.D.

[Big Beat Steve]

Credit goes elsewhere too. This photograph has been reprinted often.
The "Black Beauty White Heat" book (first published in 1982) also indicates the two unknowns are Eddie Robinson and Little Benny Harris (p. 319). So credit goes there.

[Rooster_Ties]

How young was Monk here? He looks even younger than I think I’ve ever seen pictures of him — but maybe the profile angle is playing tricks on me.

[T.D.]

Links incl. above indicate the band was formed in early 1944, which would make Monk (b. 10/17) 26.

That's a surprise, I agree with you on Monk's youthful appearance in the pic.

[Big Beat Steve]

1 minute ago, T.D. said:

That's a surprise, I agree with you on Monk's youthful appearance in the pic.

Sunglasses and goatees make you age in record tempo!

[Rooster_Ties]

Who’s the guy in the very front?

[Big Beat Steve]

Jazzbo Collins.