Ralph G. Steinhardt, Jr.

Special Engineer DetachmentLos Alamos, NM

Manhattan Project VeteranMilitary VeteranSpecial Engineer Detachment

Ralph Steinhardt was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.

Related Profiles

Lillian Guadagna

Chicago, IL

Lillian Guadagna was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Rupert Huffine

Oak Ridge, TN

Rupert Huffine worked for the J.A. Jones Construction Company.

George B. Dewitt

K-25 Plant

Attended Cornell University.

William Spindel

Los Alamos, NM

William Spindel was a member of the Special Engineer Detachments at Oak Ridge and Los Alamos. Spindel worked in a group that helped make coatings for the implosion bomb.