I'm looking, but not finding and poetry by Hammett.
"Hammett Crime Stories and Other Writings" ... "includes essays, 24 stories, and an early version The Thin Man" but says nothing about poems.
Just looking, however, reminded me of just how nightmarish his life must have been. Imagine serving in BOTH World Wars and then being locked up as an "un-American"! He is, however, buried at Arlington. A picture of his graveston:
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www.findagrave.com]