The War Department of the United States (Source: Hammersly, Thomas H. S. Complete Regular Army Register of the United States: For One Hundred Years (1779-1879). Washington, DC: Hammersly, 1880.)

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A General History [28 MB]

Adjutant General Department [6 MB]

Inspector General Department [2 MB]

Corps of Engineers [18 MB]

Ordinance Department [4 MB]

Judge Advocate General Department [3 MB]

Quartermaster Department [16 MB]

Subsistence Department [2 MB]

Pay Department [5 MB]

Medical Department [17 MB]

Secretaries of the Board, War and Ordnance [1 MB]