National Museum of Nuclear Science & History
Holman worked for Stone and Webster Engineering Corporation.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.
Marceil Roberson worked for the H. K. Ferguson Company.
E. S. Ethridge worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Wilson worked at the 100-F Area at Hanford during the Manhattan Project.