Merwin M. Carty

Seymour Calvert

Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.

E. Williams

E. Williams worked for the Roane-Anderson Company.

Harold C. Barr

Harold was a staff member at Los Alamos during the Manhattan Project.

Joe S. Barker