National Museum of Nuclear Science & History
Frederick Trapnell was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. E. Francis served in the 390th Air Service Group.
Theodore Perlman was an American engineer working at the Los Alamos laboratory during the Manhattan Project.
H. M. Bryant worked for the Comstock-Bryant Electric Company.
Church worked at the 200 East Area at Hanford during the Manhattan Project.