First floor plan of the Boulder City Museum. The floor plan signifies the first stage of development for the museum.

From left to right: a picture of John Walsh, Joe Cunningham, Dante Vespignani, Milt Wiers, John Fadgen, Mayor William Taylor (light jacket), Councilman Jack Petitti (second from right), Pete Green, Joe Mindyas, and James Johnson at a ribbon cutting ceremony in North Las Vegas City Hall.

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide reads, "Total announced tests and radiation measured off the test range complex. Total above-ground tests = 126. Total sub0surface tests = 413. Total tests = 539. Number measured off the test range complex of above-ground tests = 89. Number measured off the test range complex of sub-surface tests = 40. Total number measured off the test range complex = 129."

The black and white view of members of the Aeronautical Association awaiting the arrival of Howard Hughes and his Lockheed 12 aircraft at the Floyd Bennett Airport in New York. Typed onto a piece of paper attached to the image: "Official timers of Aeronautical Association compare their precision chronometers as Lockheed-14 roars overhead, marking end of Round-the-World flight at Floyd Bennett Airport." Typed onto a second piece of paper also attached to the image: "Official timers of the Aeronautical Association shown at Floyd Bennett Field comparing their precision chronometers as Howard Hughes' plane roared overhead marking the end of his Flight Around The World. July 1938."