The south section of the new building had temporary facades in anticipation of adding on to the building. https://digital.lib.uiowa.edu/node/562233
Dismantling part of the south wall to add the first addition in 1961.
The architect’s proposed additions to the building.
Completion of the 1961 addition.
Construction of the second addition began in summer 1965. This addition fully extended the first addition to the north. Total usable space in the library was now 200,000 square feet.