The third and fourth floors of St. Joseph's were residence areas for cadets. The Third Floor housed "A" and "B" Companies; the Fourth Floor housed "C" and "D" Companies. (A fifth Company, "E" Company, was housed in the residence area in the third floor of the Mansion.) There were no elevators in any of the LSMA buildings, so cadets would have to climb quite a few steps during the course of the day. The building also had an attic with a high ceiling which could have been made into additional space had the school been so inclined. As it was, it was used for storage.