Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

John Arnold

EngineerOak Ridge, TN

K-25 PlantWendover, UT
EngineerManhattan Project Veteran
Oak Ridge, K-25 Listen to John Arnold’s Oral History on Voices of the Manhattan Project

John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge. Arnold was director of research and development and process engineering at the plant, where he supervised the assembly and testing of what would become the K-25 plant.

Related Profiles

Hugo Griep

Tinian Island

Hugo Griep served in the 1395th Military Police Company, Aviation. 

William G. Hudgins

Los Alamos, NM

William G. (“Bill”) Hudgins spent most of childhood years in New Mexico. He first heard about a secret wartime laboratory at Los Alamos in 1943, when he was a student at the University of New Mexico.

S. N. Briscoe

Y-12 Plant

S. N. Briscoe worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Forrest R. Appler

Los Alamos, NM