Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Leo A. Ohlinger

Senior Engineer; Section ChiefChicago, IL

EngineerManhattan Project Veteran

Leo A. Ohlinger was a senior engineer at the University of Chicago Met Lab. Ohlinger was also Section Chief of P-IX, Engineering Physics.

He worked in the Theoretical Group under Eugene Wigner and was involved in the design of water-cooled production reactors. These designs were the basis for the production reactors at Hanford.

Ohlinger later shared the patent for the design of the reactors. He was also a signer of the Szilard Petition.

Leo A. Ohlinger’s Timeline
19421946 Worked on the Manhattan Project at the University of Chicago Met Lab.

1945 Signed the Szilard Petition.

Related Profiles

C. E. Gavin

Hanford, WA

O.R. Simpson

Hanford, WA

O. R. "Big" Simpson was a second lieutenant in military intelligence in charge of convoys carrying plutonium from Hanford to Fort Douglas, Utah.

J. W. Calderwood

T-Plant/200 Areas

Calderwood worked at the 200 East Area at Hanford during the Manhattan Project. 

Pauline McGrath

Chicago, IL

Pauline McGrath was a secretary at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.