National Museum of Nuclear Science & History
C. A. Yoakum worked for the United States Engineer District Office.
Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.
Percival C. “Dobie” Keith was Vice President for Research and Engineering for the M.W. Kellogg Company.
Martha G. Johnson was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Edward F. Wortmann (1916-1998) was a purchasing agent at Los Alamos during the Manhattan Project. Wortmann joined the lab in 1944.
