The Karen Allison Collection on Contract Bridge (1937-1997) contains instructional guides, pamphlets, and booklets explaining the rules and strategies for contract bridge, a card game. Included are correspondence and meeting minutes with contract bridge organizations with which Allison was associated. Also included are lists of players who participated in the Monte Carlo 5th World Bridge Olympiad in Monte Carlo, Monaco in 1976.
U.S. Bureau of Reclamation (then known as U.S. Reclamation Service) bridge at Laguna Dam on the Colorado River - constructed 1906-1907. Inscription reads "The swastikas were the emblem of the early Reclamation Service." (photo by Dennis McBride, April 1983.)
Photographer's notes: "Cross canyon view to the Nevada bridge deck from the top of the Arizona pylons. Note: This was the only evening I was allowed on top of the temporary pylons to shoot." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Bridge across the Colorado River at Yuma. Photo was taken from California side of the river from the top of School Hill. The train on the draw bridge was stopped at the Yuma station, a typical wooden building with a Restaurant at the front.
Photographer's notes: "Arch construction and Nevada bridge deck from viewpoint south of bridge on Arizona side of canyon, July 1, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge
Photographer's notes: "Nevada bridge deck and arch foundation with temporary pylons still in place, evening, September 8, 2009." Site Name: Mike O'Callaghan-Pat Tillman Memorial Bridge