Constructed in 1961, the Willis E. Pratt Hall was originally built to serve as the student union building for Indiana State College. In 1985 when the college officially became a university (Indiana University of Pennsylvania) a new student union was constructed and named after Trevor S. Hadley. Griswold was contacted to develop planting and site plans for the student union renovations and expansion of the Hadley Union Building. This subseries includes nineteen blueprints and plan materials of the Pratt Hall layout, hall parking, topography, grading and electrical plans, as well as general plans and planting plans. The Pratt Hall and Hadley Union Building renovations, expansion, and landscape projects were completed in 1985.