Leighton B. Ewell

Carl Crumb

Carl Crumb was a member of the Special Engineering Detachment at Los Alamos. While working there, he met his wife Jeanne Crumb, who was a nurse in the Los Alamos Hosptial.

C. R. Jones

C. R. Jones worked for the Union Carbide & Carbon Corporation.

Mark S. Fred

Mark Fred was a research assistant in the chemistry division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Leroy F. Chambers