John Geffel Sr.

Project StaffOak Ridge, TN

Manhattan Project VeteranProject Worker/Staff

John Geffel worked at Oak Ridge as the Prime Building Contractor for Construction of the Oak Ridge facilities. His wife, Teresa Logidice Geffel, also worked as the Chief Nurse-in-Charge at Oakridge’s hospital during the course of the Manhattan Project.

John Sr. (top left) and Theresa (top right). and sons Robert (bottom left) and John (bottom right)

John Sr.’s grandchildren, Mimi and Robyn Geffel in 1952.

Related Profiles

M.G. Shaffer

Hanford, WA

C. A. Gosline

T-Plant/200 Areas

Gosline worked at the 200 West Area at Hanford during the Manhattan Project.

Clyde E. Bagwell

Oak Ridge, TN

Clyde E. Bagwell worked for the Roane-Anderson Company.

John Tempka

Los Alamos, NM

John Tempka (1923-2017) was an American engineer. Tempka was born in Boydsville, Ohio. He was studying at the University of Detroit when he was recruited to join the U.