N 1.1: Department of the Navy (1798-1947)
N 2.1: Assistant Secretary (1898-1904)
N 3.1: Admiral of the Navy (1886-1888)
N 4.1: Bureau of Construction and Repair (1842-1940)
N 5.1: Bureau of Equipment (1862-1910)
N 6.1: Hydrographic Office (1866-1947)
N 7.1: Judge-Advocate General (1880-1947)
N 8.1: Solicitor of Navy Department (1908-1947)
N 9.1: Marine Corps (1798-1947)
N 10.1: Bureau of Medicine and Surgery (1842-1947)
N 11.1: Nautical Almanac Office (1849-1947)
N 12.1/1: Naval Academy (1845-1947)
N 13.2: Office of Naval Intelligence (1882-1947)
N 14.1/1: Naval Observatory (1842-1947)
N 15.1: Naval War College (1884-1947)
N 16.1: Naval Records and Library Office (1895-1947)
N 17.1: Bureau of Naval Personnel (1862-1947)
N 18.1: Bureau of Ordnance and Hydrography (1842-1947)
N 19.1: Bureau of Engineering (1920-1940)
N 20.1: Bureau of Supplies and Accounts (1842-1947)
N 21.1: Bureau of Yards and Docks (1842-1947)
N 22.1: Naval Communications Service (1912-1947)
N 23.1: Division of Naval Militia Affairs (1914-1918)
N 24.1: Coast Guard (1917-1919, 1941-1946)
N 25.1: Naval Reserve Force Division (1915-1918)
N 26.1: Commission on Training Camp Activities (1917-1919)
N 27.1: Office of Naval Operations (1915-1947)
N 28.1: Bureau of Aeronautics (1921-1947)
N 29.1: Bureau of Ships (1940-1947)
N 30.1: Office of Procurement and Material (1942-1945)
N 31.1: Office of Public Relations (1941-1947)
N 32.1: Office of Naval Research (1946-1947)
