After his first local commission being on a rock ledge, Hallock gained a reputation for providing solutions for difficult sites. The site acquired by the Spragues had a rock ledge running through it, so only one half of the house has a basement. Howard was Professor and Head of the Agronomy Department at Penn State for many years. He then became an independent consultant to various organizations in Washington, particularly USAID.
The Spragues required a one-story residence and room for two vehicles. Phil accomplished this by turning the house sideways and putting entrances on each side of the dwelling. The living room is actually symmetrical around the fireplace, although the outside window treatment leads the viewer to believe otherwise. The dominant chimney is a common Hallock hallmark.