23rd Cavalry Division (United States)
The 23rd Cavalry Division was a cavalry formation of the United States Army National Guard during the interwar period.
Standard organization chart for a Cavalry Division in November 1940
A corps area was a geographically-based organizational structure of the United States Army used to accomplish administrative, training, and tactical tasks from 1920 to 1942. Each corps area included divisions of the Regular Army, Organized Reserve, and National Guard of the United States. Developed as a result of serious mobilization problems during World War I, this organization provided a framework to rapidly expand the Army in times of war or national emergency, such as the Great Depression.
Corps area commanding generals meet with the Chief of Staff and Secretary of War in Washington, D.C., 1 Dec. 1939.