G. Ratterman

C. Hollifield

C. Hollifield worked for the Roane-Anderson Company.

H. G. Warren

Raymond C. Grills

Raymond C. Grills is an American physical chemist who worked at the University of Chicago’s Metallurgical Laboratory and at Hanford during the Manhattan Project.

Marvin Wilkening

Marvin Wilkening, a physicist, traveled the Grand Circuit of the Manhattan Project, pursuing his specialty of measuring neutron intensity.