Boyce McGrail

Jas M. Purcell

Jas Purcell worked for the Roane-Anderson Company.

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.

Joseph F. Vollmer

Joseph Vollmer served in the army at Los Alamos during the Manhattan Project.

G. J. Baird