Publisher
- Office of Paymaster-General1
- Office of Public Buildings and Grounds4
- Office of Quartermaster-General19
- Office of Road Inquiry11
- Office of Signal Officer1
- Office of Superintendent of Documents5
- Office of Surgeon-General5
- Office of War Records4
- Office of the Adjutant-General7
- Office of the Chief of Engineers69
- Office of the Commissioner of Indian Affairs2
- Office of the Inspector-General2
- Office of the Judge-Advocate-General2
- Office of the Paymaster-General2
- Office of the Quartermaster-General12
- Office of the Superintendent of Documents7
- Office of the Surgeon-General.2
- Oil Cases, Special Counsel for United States in12
- Oil Import Administration3
- Oil and Gas Office34