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

C. L. Wheadon

Research & Development/300 Area

Wheadon worked at the 300 Area at Hanford during the Manhattan Project. 

John Ruminer

Los Alamos, NM

Dr. John Ruminer is a retired engineer, local historian, and a member of the Board of Directors at the Los Alamos Historical Society.

D. H. Collins

Hanford, WA

J. P. Connor

T-Plant/200 Areas

Connor worked at the 200 West Area at Hanford during the Manhattan Project.