Arrangement
The collection is organized into ten series.
Series 1, Biographical/General, 1905-1940
Series 2, Correspondence, 1902-1964 and undated
Series 3, Inventions, 1904-1942
Subseries 1, Notebook, 1904
Subseries 2, Invention Notebooks, 1910-1942
Series 4, U.S. Army Ordnance Department, 1918-1921
Series 5, U.S. Bureau of Standards, 1917-1926
Subseries 1, Papers, 1917-1922
Subseries 2, Photographs, 1920, 1924, 1926, undated
Series 6, Museum work, 1927-1941
Series 7, Photographs: Museums of the Peaceful Arts, Museum of Science and Industry, New York City, undated
Subseries 1, Events, Exhibits and Displays, undated
Subseries 2, Models, Objects, Machines and Devices, undated
Subseries 3, People with Objects, undated
Subseries 4, People, undated
Subseries 5, Photos of Other Materials, undated
Series 8, American Association for the Advancement of Science (A.A.A.S.), 1932-1937
Series 9, Photographs: other subjects, 1907-1939
Subseries 1, Exhibits, Displays and Objects, 1931-1939, undated
Subseries 2, People, 1907-1928, undated
Subseries 3, Miscellaneous, circa 1918-1920, undated
Series 10, Miscellaneous, 1910-circa 1945