United States Army Base Hospital Number 12

The Base Hospital unit included some of the first Chicagoans to aid in the war effort. Unit staff served in France, treating some 60,000 patients, mostly British soldiers, over the course of 22 months. The unit consisted of 23 doctors, 2 dentists, 65 nurses and 153 enlisted men who operated a tent-and-hut hospital with 1,200 to 1,500 beds.