James P. Bryan

D. C. Copeland

Copeland worked in the United States Engineer District Office.

John Chipman

John Chipman was an American engineer. Chipman was born in 1897 in Tallahassee, Florida. He received B.

Edward De Felice

Mary Lou Curtis

Mary Lou Curtis joined the Manhattan Project in Dayton, Ohio in 1943. Mrs. Curtis worked in the Counting Room at Monsanto’s Unit III facility, where she developed new methods to measure and analyze radioactive materials, such as polonium, which was used as the trigger for the atomic bombs.