National Museum of Nuclear Science & History
Attended Drexel University.
Frank Holden was a member of the Special Engineering Detachment at Los Alamos.
Carl Helrich (1895-1971) was a civil engineer for the J.A. Construction Company from 1943 to 1945 and helped construct the Oak Ridge town site and plant area.
Harlowe worked at the 100-B Area at Hanford during the Manhattan Project.