Built in 1907 on Paddock Avenue, its complex of buildings are unusual in being constructed of continuously cast concrete during a span of about 20 years.

[3] The complex includes nine buildings and a structure which were deemed contributing in a National Register of Historic Places listing in 1979.

[1] The It includes the Billings Memorial Gymnasium (1929), which was designed by Boise architects Tourtellotte & Hummel in Classical Revival style.

Hooker Hall is, architecturally, the "most pretentious" of the buildings; plans were afoot in 1979 for it to become home of something.

[3] In fact, in 2019, it is the home of the Snake River Heritage Center and/or the Weiser Museum.