The College Library took back the northwest wing, 2nd floor, Dillon Hall when the high school students moved off the main campus in the mid-1950s. The College Library, at this point, also occupied the northeast wing, 2nd floor, Dillon Hall, and the northeast wing, 1st floor, Dillon Hall. In this instance, the top and bottom photographs look to be the northwest wing, 2nd floor, and middle photograph, the northeast wing, 2nd floor.