Richard A. Vaughn

Hannibal Fraga

Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.

Betty Maskewitz

Betty Maskewitz arrived in Oak Ridge in the summer of 1944 with her husband, who worked at the site. She was an elementary school teacher.

C.E. Gant

Fredrika Lewis

Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.