A view of Howard Hughes attending an informal press conference in Culver City, California, after Hughes left the Senate War Investigating Subcommittee hearing in Washington.

A view of Howard Hughes attending an informal press conference in Culver City, California, after Hughes left the Senate War Investigating Subcommittee hearing in Washington.

A view of Howard Hughes attending an informal press conference in Culver City, California, after Hughes left the Senate War Investigating Subcommittee hearing in Washington.

Transcribed from back of photo: "Howard Hughes in the cockpit of the new XF-11 reconnaissance plane which he designed and built in conjuntion with Air Material Command engineers. He is preparing for its first flight. One of the world's fastest long-range photo planes, it can attain a speed of over 400 miles per hour."

From the Nan Doughty Photograph Collection (PH-00240)

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide reads, "Off-site radiation exposure review project organization chart"

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