In his speech at the 1939 groundbreaking for the Rhinebeck post office, he jokingly warned Farley and Treasury Secretary Henry Morgenthau, Jr. that they would not keep their jobs unless they made sure that there would be federal money available to build a new post office in Hyde Park. Rudolph Stanley-Mills, a former Treasury architect by then in private practice, was chosen to design a building for Roosevelt's ultimate approval, due to his successful work on Rhinebeck, Wappingers Falls and other stone post offices in the region.