Department of Arizona

The Department of Arizona was a military department of the United States Army that existed from 1870 to 1893. It was subordinate to the Military Division of the Pacific and comprised posts in Arizona and Southern California. It was the successor to the District of Arizona within the Department of California. It was headquartered at Drum Barracks in Wilmington, California.

Commanders
...
 * Colonel George Stoneman, May 3, 1870, to June 4, 1871
 * Lieutenant Colonel George Crook, June 4, 1871, to Mar. 22, 1875
 * Brigadier General Orlando B. Willcox, Mar. 5, 1878, to September 4, 1882
 * Brigadier General George Crook, September 4, 1882 to April 11, 1886
 * Brigadier General Nelson A. Miles, 1886-88
 * Brigadier General Alexander McDowell McCook, September 16, 1890 to July 6, 1893