Charles Reznikoff comes from the 1940 Manhattan telephone directory. Yes, it’s the poet: Selected Letters of Charles Reznikoff, 1917–1976 (1997) includes several letters from 1939 and 1940 written from this West 24th Street address. By October 1940, Reznikoff had moved to West 18th Street.
A related post
Milk bottles (with a Reznikoff poem)
[Is anyone else playing? If so, whom have you found?]