National Museum of Nuclear Science & History
B. H. Ronfeld served in the 509th Headquarters.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Charles Kozlowski served in the 393rd Bombardment Squadron.
Frank Fessenden worked for the Tennessee Eastman Corporation at the Y-12 Plant.