Go directly to a specific Preliminary Inventory:
- Preliminary Inventory 9: Preliminary Inventory of the Records of the Office of the Paymaster General
- Preliminary Inventory 11: Preliminary Inventory of the Records of the Civilian Conservation Corps, Record Group 35
- Preliminary Inventory 14: Preliminary Inventory of the Records of the United States Direct Tax Commission for the District of South Carolina
- Preliminary Inventory 17: Preliminary Inventory of the Records of the Adjutant General's Office
- Preliminary Inventory 20: Preliminary Inventory of the Records of the Maritime Labor Board
- Preliminary Inventory 21: Preliminary Inventory of the Records of the United States Counsel for the Prosecution of Axis Criminality
- Preliminary Inventory 22: Preliminary Inventory of the Land-Entry Papers of the General Land Office
- Preliminary Inventory 26: Records of the Bureau of Aeronautics
- Preliminary Inventory 29: Records of the Foreign Economic Administration
- Preliminary Inventory 32: Preliminary Inventory of the Records of the Accounting Department of the Office of Price Administration (Record Group 188)
- Preliminary Inventory 33: Preliminary Inventory of the Records of the Bureau of Ordnance (Record Group 74)
- Preliminary Inventory 34: Preliminary Inventory of the Records of the Solid Fuels Administration for War (Record Group 245)
- Preliminary Inventory 35: Preliminary Inventory of the Records of the Office of Government Reports (Record Group 44)
- Preliminary Inventory 40: Preliminary Inventory of the Records of the United States Mint at Philadelphia (Record Group 104)
- Preliminary Inventory 44: Preliminary Inventory of the Records of the National Recovery Administration (Record Group 9)
- Preliminary Inventory 47: Preliminary Inventory of the Records of the Court of Claims Section of the Department of Justice (Record Group 205)
- Preliminary Inventory 57: Records of the Federal Writers' Project, Work Projects Administration, 1935-44 (Record Group 69)
- Preliminary Inventory 58: Preliminary Inventory of the Records of the United States Court of Claims (Record Group 123)
- Preliminary Inventory 72: Preliminary Inventory of the Records of the Wage Adjustment Board (Record Group 236)
- Preliminary Inventory 73: Preliminary Inventory Cartographic Records of the United States Marine Corps (Record Group 127)
- Preliminary Inventory 76: Preliminary Inventory of the Records of the United States Participation in International Conferences Commissions, and Expositions (Record Group 43)
- Preliminary Inventory 79: Preliminary Inventory of the Records of the Commission of Fine Arts (Record Group 66)
- Preliminary Inventory 81: Preliminary Inventory of the Cartographic Records of the Office of the Secretary of the Interior (Record Group 48)
- Preliminary Inventory 82: Preliminary Inventory of the Records of the Bureau of the Second Assistant Postmaster General, 1814-1946 (Record Group 28)
- Preliminary Inventory 83: Records of the Extension Service (Record Group 33)
- Preliminary Inventory 85: Preliminary Inventory of the Cartographic Records of the Office of the Chief of Naval Operations (Records Group 38)
- Preliminary Inventory 89: Preliminary Inventory of the Records of the American Commission to Negotiate Peace (Record Group 256)
- Preliminary Inventory 90: Preliminary Inventory of the Records of the United States Antarctic Service (Record Group 126)
- Preliminary Inventory 94: Preliminary Inventory of the Records of the Bureau of Entomology and Plant Quarantine (Record Group 7)
- Preliminary Inventory 98: Preliminary Inventory of the Records of the Central Bureau of Planning and Statistics (Record Group 51)
- Preliminary Inventory 99: Preliminary Inventory of the Records of theOffice of the Postmaster General (Record Group 28)
- Preliminary Inventory 100: Preliminary Inventory of the Records of the War Trade Board (Record Group 182)
- Preliminary Inventory 101: Preliminary Inventory of the War Department Collection of Confederate Records (Record Group 109)
- Preliminary Inventory 102: Preliminary Inventory of the Records of the Rationing Department of the Office of Price Administration (Record Group 188)
- Preliminary Inventory 103: Preliminary Inventory of the Cartographic Records of the Bureau of the Census (Record Group 29)
- Preliminary Inventory 104: Records of the Bureau of Agricultural Economics (Record Group 83)
- Preliminary Inventory 114: Preliminary Inventory of the Records of the Bureaus of the Third and Fourth Assistant Postmasters General, the Bureau of Accounts, and the Bureau of the Chief Inspector of the Post Office Department (Record Group 28)
- Preliminary Inventory 115: Preliminary Inventory of the Records of the Foreign Broadcast Intelligence Service (Record Group 262)
- Preliminary Inventory 118: Preliminary Inventory of the Records of the Farmers Home Administration (Record Group 96)
- Preliminary Inventory 123: Preliminary Inventory of the Records of the Bureau of Naval Personnel (Record Group 24)
- Preliminary Inventory 124: Preliminary Inventory of the Records of the United States District Court for the Eastern District of Pennsylvania (Record Group 21)
- Preliminary Inventory 127: Preliminary Inventory of the Records of the Headquarters, United Nations Command (Record Group 333)
- Preliminary Inventory 135: Records Relating to Civil War Claims, United States and Great Britain (Record Group 76)
- Preliminary Inventory 143: Preliminary Inventory of Records Relating to United States Claims Against the Central Powers (Record Group 76)
- Preliminary Inventory 153: Preliminary Inventory of the Textual Records of the Panama Canal (Record Group 185)
- Preliminary Inventory 159: Preliminary Inventory of United States Government Documents Having General Legal Effect (Record Group 11)
- Preliminary Inventory 161: Records of the Bureau of Census (Record Group 29)
- Preliminary Inventory 163: Records of the Bureau of Indian Affairs, Volume I (Record Group 75)
- Preliminary Inventory 183: Preliminary Inventory of the Records of the Social Security Administration (Record Group 47)
- Preliminary Inventory 187: General Records of the Department of the Treasury (Record Group 56)
- Preliminary Inventory 194: Preliminary inventory of the General Records of the Department of Justice (Record Group 60)