Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Margaret Caldes

SecretaryLos Alamos, NM

Manhattan Project VeteranProject Worker/StaffSpouse to Manhattan Project Worker
Margaret E. Caldes's Los Alamos ID badge

Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943. She worked as a secretary for Julian Mack in the photography department.

Related Profiles

Sherman D. Kaplan

Chicago, IL

Sherman D. Kaplan was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Truman F. Browder

Los Alamos, NM

R. N. Reams

X-10 Graphite Reactor

R. N. Reams worked for Clinton Laboratories at the X-10 Reactor.

Larned B. Asprey

Chicago, IL

Larned Asprey (1919-2005) was an American chemist. He was born on March 19, 1919. Asprey obtained a B.