This collection contains documentation regarding architectural works by Donald E. Hatch, mostly dating from his works in Caracas, Venezuela during the 1950s and San Francisco, California during the 1960s-1970s.

This collection contains the drawings and plans of designs by Robert W. Hess during his time as a practicing architect, focusing on his work in Kansas, Washington, California, and a few other geographical areas. The collection also includes some material from his student work, as well as an autobiographical account of his career.