Between 1888 and 1993, Fort Sheridan served as a U.S Army post. Motivated by the labor strikes of 1877 and the Haymarket Riot in 1886, the Commercial Club of Chicago, a group of wealthy businessmen, supported the use of the nation’s army as a regional police force to protect property and quell worker uprisings—a plan backed by Philip H. Sheridan, a Civil War hero and commanding general.
The organization purchased the land in 1887 and donated it to the federal government with the hope that the gift would be used to create a military garrison near the city. Construction began at what was initially called Camp Highwood in the spring of 1888. Shortly thereafter, President Grover Cleveland named the post in honor of General Sheridan. (Fort Sheridan troops responded the Pullman strikes in 1894, the only time they were called upon to suppress labor unrest.)
Fort Sheridan became a mobilization, training and administrative center during the Spanish-American War and continued to serve this purpose through World War II. Many officers who would go on to become famous, including General George Patton and Jonathan Wainright, were stationed there. The 174th Military Police Battalion of the Leavenworth, Kansas, National Guard was stationed there in 1950, and, from 1953 to 1973, Fort Sheridan was the Cold War base for servicing and supplying all NIKE anti-missile systems in the upper Midwest. After 1973 the post again housed administrative and logistics support services.
Fort Sheridan was among the military bases scheduled for closure under the Base Realignment and Closure (BRAC) Act of 1989 and closed in 1993. By 1995, Fort Sheridan's 714 acres were dispersed as follows:

