[Photograph of Theresa Allen Building Airplanes]

Photograph of Theresa Allen building airplanes. Allen is surrounded by cables and is wearing a white blouse with stars on it. Her name tag reads "222." Handwritten text on the back reads, "My mother, Theresa Allen building airplanes in Grand Prairie. She later worked at all three drug stores at corner of Main & Center - Terey Bros., Johnstons, Coulter's and later Workman's. My dad worked at the 'Bomber Plant' at Ft. Worth.

Circular, acrylic "Satellite Orbit Calculator" mounted on a large poster board

Circular, acrylic "Satellite Orbit Calculator" mounted on a large poster board, with instruction manual, made by the Space and Information Systems Division of North American Aviation, Inc., 1962.Artifact Size: 39W by 28H.Credit: John Glenn Archives, The Ohio State University

Office of Saline Water Reports

From Introduction: "The objective of this investigation was to obtain data which will lead to a better understanding of the mechanism of ice formation in saline water. That is, whether the crystal growth is controlled by heat transfer, nucleation of new layers, or diffusion of matter.

Office of Saline Water Reports

From Summary: "The results of such experiments are summarized as follows: 1. Anion-responsive electrodes formed with Kraton, graphite, Norit, and Amberlite CG-4B demineralized well at currents up to 10 milli-amperes; regeneration was efficient up to 8 milliamperes. 2. Satisfactory anion-responsive electrodes containing Amberlite IRA-68 could only be formed when resin was first ground while in the sulfate form; it was required that it be added to the paste mixture (Kraton, Norit, and graphite) in the same form.