The Historic American Buildings Survey of Kiel Ranch Photograph Collection contains 45 black-and-white photographs of the buildings on Kiel Ranch from 1988. The buildings documented by the collection are the park mansion, the adobe structure, an old house, the foreman's house, a shed referred to as the "Doll House," a brown house, a cinderblock house, a wooden duplex, and a livestock shed.

The Edward C. Light Schematic Drawings of the Hughes H-4 Hercules "Spruce Goose" Seaplane consists of blueline print reproductions of sheets created between 1941 and 1950 containing schematic engineering design drawings pertaining to the aircraft's rudder and flight control system assembly and installation. Types of drawings include full body perspective diagrams, structural sections, elevations, and plans.