Do you have specific info on what kind of public works project this might
have been?  I'm only familiar with his 1942 HF and 1944 LM illustrations,
all preserved now --I think-- at the State Historical Society of Missouri. I
may have the name wrong. There's a nice 1976 catalogue of his works
published by a Missouri historical society or state library, but I don't
recall any connection to a public works project --but I'd love to know more
about this.

Other illustrators that come to mind, of the sort Hal seeks, are Peter Hurd
(TS) and Worth Brehm (TS and HF). It's quite possible one of these is the
source of the Bantam paperback cover...

Kevin Mac Donnell
Austin TX 78730