Howard Hughes (center) standing beside two unidentidied men in a building possibly located in Texas.

A view of the procession of a parade thrown for Howard Hughes possibly in Texas.

The exterior of Hughes Research Laboratories where rock bits were test-drilled in Culver City, California in the 1940s. Transcribed from note taped to back of photo: "Rock bits are test-drilled in the laboratory under conditions that duplicate, as far as is possible in the laboratory, those encountered in actual drilling. As a result, rotational speeds, loads, and fluid volume are closely controlled. The rig operator occupies a splash-proof booth above the 'cellar floor.' The instruments on his control panel provide for application and measurement of variable axial loading on the drilling bit up to 100,000 lbs., variable rotational speeds up to 400 rpm, measurement of bit penetration over a total vertical travel of 5 feet at rates up to 180 ft. per hour, and torque. On the panel, also, are several controls for the operation of mud pump and other accessory equipment."

An aerial view of Las Vegas-Squires park & City Hall-Dula Memorial Center (left front) before City Library & new State Building.

Howard Hughes (second from right) posing with other unidentified men in a building possibly located in Texas.

Howard Hughes inside of the DC-3. Stamped on back of photo: "Hughes Aircraft Photo."

From the Sister Klaryta Antoszewska Photograph Collection (PH-00352). The presentation slide reads, "Nevada Operations office off-site follow-up studies project scope. Collect & organize historical documents. Publish/make available previously unreleased or classified data. Make comprehensive assessment of radiation dose. Compile operating on/off site for each event."