National Museum of Nuclear Science & History
Mildred McNamee worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Edward F. “Ed” Hammel was an American chemist. Hammel had just completed his Ph.D. at Princeton University when he joined a Canadian heavy water project sponsored by the school in 1941.
Sieck worked at the 200 East Area at Hanford during the Manhattan Project.
H. R. Koonce worked for the J.A. Jones Construction Company.