National Museum of Nuclear Science & History
Appears in the 1944 Hanford Telephone Directory as “Petersen” and the 1945 Directory as “Peterson”.
MacCready worked in the 200 West Area at Hanford during the Manhattan Project.
Tony Padilla was a staff worker at Los Alamos during the Manhattan Project.
J. H. Seivers worked for the Tennessee Eastman Corporation at the Y-12 Plant.