James C. Hobbs

EngineerManhattan, NY

K-25 PlantOak Ridge, TN

EngineerManhattan Project Veteran

Listen to James C. Hobbs’s Oral History on Voices of the Manhattan Project

James C. Hobbs was an American inventor and engineer who created a key part of the valves used in the K-25 gaseous diffusion plant in Oak Ridge, TN. He was a prominent graduate of Carnegie Mellon University in Pittsburgh and was vice-president of the Diamond Alkali Company. Hobbs was brought on to the Manhattan Project by the head of the Kellex Corporation, Percival Keith, to improve the piping system in the K-25 plant.

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