Scope and Contents From the Collection: This collection includes photographs, photo albums, negatives, and blueprints pertaining to the operations of Wendall P. Hammon, and his various companies, including Yuba Construction Company and Yuba Consolidated Industries. Photographs, albums, negatives, and blueprints relate to the dredging, manufacturing, and mining activities of the Hammon enterprises. The blueprints contain specifications for various dredger sizes and types of dredgers, including 3, 3 ½, 4 5, 6, 10, 11, and 12 cu....