National Museum of Nuclear Science & History
Robert Holmberg was born in Fort Dodge, Iowa, and began working on the Manhattan Project at the Chicago Met Lab and at Ames Laboratory in Iowa.
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.
J. M. Piper worked for the Tennessee Eastman Corporation at the Y-12 Plant.
D. D. Carmichael served in the 390th Air Service Group.
