sentences:  However, those post offices all were designed in imitation of specific buildings (some no longer extant) from the colonial era; only Beacon and Harrison were designed like other contemporary Colonial Revival post offices.Architect Gilbert Stanley Underwood was familiar with stone, having used it for his buildings in national parks in the West near his Sun Valley, Idaho, home, such as Bryce Canyon Lodge, the Ahwahnee Hotel in Yosemite National Park and Grand Canyon Lodge, all later designated National Historic Landmarks.He had been retained by the Treasury Department's Supervising Architect to help with the increased workload brought on by the expansion of public building projects during Roosevelt's New Deal.