Mallette Dean painted one post office mural, Agriculture, in Sebastopol, California. I’m a fan of exaggerated perspective, which the mural has a bit of, but it’s a little too quaint and charming for my personal tastes. Luckily for good old Mallette, I am not an art critic and my opinion will not likely ever reach him (unless you have friends who communicate with the dead and you feel the need to share).
I do like many of his woodcuts and engravings. You can see some at the Smithsonian American Art Museum.