The Ash Building, at Second and Western, was built for John Ash, the owner of Builder's Supply in Corvallis. The first occupants of the building were the Siuslaw National Forest, the Marys Peak Ranger Station, the offices of Builder's Supply, and Datron, Inc., an electronic data processing firm. The reinforced concrete building was built at a cost of $165,000. (Source: "Gazette-Times," Corvallis, Oregon, Thursday, October 22, 1959.) The building was designed by local architect Cleo Jenkins. Plans for this building are in the collection of the Benton County Historical Museum.