The Jefferson Barracks Hub, also known as the HUB, was published by the U.S. Army Reserves and was an “Official publication of the Air Corps Replacement Training Center, Jefferson Barracks, Mo.” The collection houses an incomplete run of volumes 1 through 4 from Dec. 12, 1941 to April 30, 1944 (v. 1, no. 36-v. 4, no. 18). Volume 4 is complete and volume 3 is missing four issues.
