Answer/Explanation:
Work Progress Administation (WPA) post office was established to help Americans to keep the historical records of work in local communities during the period of "great depression."
The Riveter Development of the Land Post Man in Storm Barefoot Mailman Sorting the Mail Mining Orange Pickers depicted the "Legend of James Edward Hamilton, Mail Carrier" in the West Palm Beach, Florida Post Office. Charles W. Pierce, who had been one of the carriers on the "barefoot route", was Postmaster in Boynton Beach, Florida at the time, and corresponded with Dohanos, providing photos of James Hamilton in the clothes he wore on the "barefoot route".
These Murals portrayed the suffering of Americans the period of great depression