Painting of railroad construction and Las Vegas auction. Depiction of locomotive in foreground is inaccurate for 1905 scene. Crosby DeMoss murals (WPA Art Project). Inscribed at top of photo: "To Fred Wilson. Sincerely, Crosby DeMoss."

Description given with photograph: "A close-up view of the ancient metate, or grinding stone, located at the Southern end of the Pueblo Grande de Nevada. Fragments of pottery and stone grinders or pestles [sic] in view."

Black and white image of a crowd of people gathered together for the Boulder Junction, a ceremony celebrating the beginning of work on Boulder Canyon Project and the beginning of construction on a Union Pacific Railroad from Boulder Junction (Bracken Junction) to the dam site. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

A black and white image of several unidentified men and women associated with the Rotary Club attending the Boulder Dam decennial (officially renamed Hoover Dam in 1947).

A black and white image of U.S. Marshal Claude Williams and his family in front of his office. The words "U.S. Marshal" are spelled out in white rocks in front of the building.

A black and white image of people standing by the Boulder Dam Pier sign, which is draped with rattlesnakes. Note: Boulder Dam was officially renamed Hoover Dam in 1947.

An image of Rotary Club members having lunch at Boulder Dam. Note: Boulder Dam was officially renamed Hoover Dam in 1947.