Interior view of the Anderson Brothers Dining Hall for the men working on the Hoover Dam in Boulder City, Nevada.

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The slide reads: "Comparison of the cumulative estimated dose with diagnostic x-rays 1951 to 1958.

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). 

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). 

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). 

Description given with photo: "Hughes Arrives In New York: La Guardia Field, New York, N.Y. -- Completing his first air journey since his near-fatal test-flight accident July 7, Howard Hughes, airplane designer, pilot and movie producer, is interviewed by reporters after piloting his converted B-23 transport to a midnight landing here tonight at La Guardia Field. Hughes interrupted his convalescence to fly here from Culver City, Calif., with a stop-over in Kansas City. In New York, Hughes planned to cover with his attorneys regarding steps to protect his property rights in connection with the motion picture, "The Outlaw", which recently had its seal of approval revoked by the Motion Picture Association."