Publisher
- Army-Navy-Civil Committee on Aircraft Design Criteria9
- Arsenal, Rock Island2
- Arsenal, Watertown2
- Artillery Corps4
- Artillery Corps (War Department)2
- Artillery Office2
- Artillery School6
- Artillery School, Fort Monroe15
- Artillery School, Fort Monroe (Military Secretary's Department, War Department)9
- Asiatic Division3
- Asiatic Station3
- Assay Commission32
- Assay Commission (Mint Bureau, Treasury Department)3
- Assistance Payments Administration25
- Assistant Attorney-General1
- Assistant Postmaster-General (First)1
- Assistant Postmaster-General (Second)1
- Assistant Public Printer (Superintendent of Documents)94
- Association of Economic Entomologist1
- Association of Official Agricultural Chemists4