Wilbur Clark facing camera at round table, center at a formal dinner at the Astor Hotel, New York City, 1958. (credit: Bill Mark, Park Sheraton Hotel, NYC).

An aerial view of the North Las Vegas City Hall and Civic Center Drive.

A Formal dinner at the Hotel Astor in New York City, 1958. Wilbur Clark is located at the center of the picture, leaning his elbow on the table to the right. (Credit: Bill Mark, Park Sheraton Hotel, NYC.)

Signing of contracts for Lake Mead water pipeline at the Las Vegas City Hall. Sitting in the top row from left to right: unidentified individual, Arleigh West, Bureu of Reclamation, Oran Gragson, Mayor of Las Vegas, Paul Laxalt, Governor of Nevada, Robert Griffith, Chairman Colorado River Commission, William Taylor, Mayor of North Las Vegas, Leonard Fayle, President of Las Vegas Valley Water District, Mr. Hampton, Mayor of Henderson, Robert Broadbent, Mayor of Boulder City. Site Name: Clark County Court House, Las Vegas (Nev.)

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide lists the steps required to conduct atmospheric and underground bomb tests. 

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide title reads, "Underground nuclear test execution sequence"

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide title reads, "Comparative Radiation Exposures"