National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Russell R. Wolff served in the 390th Air Service Group.
L. M. Genung worked for the Roane-Anderson Company.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
Ainsworth worked at the 100 D Area at Hanford during the Manhattan Project.