The district includes the 1879 General Crook House Museum, as well as the 1879 Quartermaster's office, 1878 commissary, 1884 guardhouse, 1883 ordnance magazine and 1887 mule stables.

The site includes the General Crook House, which is listed separately on the National Register of Historic Places (NRHP).

The post, however, remained home to upwards of ten companies of the 2nd Infantry until 1896, when the garrison was relocated to Fort Crook near Bellevue.

Standing Bear, a Ponca chief, successfully argued in the U.S. District Court that Native Americans were "persons within the meaning of the law" and had rights of citizenship.

In World War II, Fort Omaha was used as a prisoner-of-war camp to house Italian Army soldiers captured in Europe.

In 1907, the Army built a large steel hangar at Fort Omaha for use in experiments with dirigibles, a program that was abandoned in 1909.

[8] Shortly after the United States entered World War I, 800 men immediately enlisted in the Aviation Section, U.S. Signal Corps.

In 1917, the Army determined that weather conditions at Fort Omaha were not suitable for rapidly training balloon companies.

The next year, a contingent of officers and men from Fort Omaha were assigned to Camp John Wise in Texas.

It is filled with 19th-century Victorian-style furniture, in addition to military exhibits, and offices of the Douglas County Historical Society.

Built in 1879 by the U.S. Army, the Headquarters Building at Fort Omaha first served as the home of the Department of the Platte during the command of General George Crook.

Today, several perimeter facilities are used as a training locations for the Marine Corps Reserve, as well as storage and repair areas for Navy vehicles.