Gilbert Stanley Underwood was an American architect best known for his National Park lodges.

Daniel Ray Hull (1890–1964), sometimes stated Daniel P. Hull, was an American landscape architect who was responsible for much of the early planning of the built environment the national parks of the United States during the 1920s. Hull planned town sites, designed landscapes, and designed individual buildings for the Park Service, in private practice, and later for the California State Parks. A number of his works are listed on the U.S. National Register of Historic Places.