National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
H. R. Chapman worked for the H. K. Ferguson Company.
Attended Virginia Polytechnic Institute.
Merrill worked in the 300 Area at Hanford during the Manhattan Project.
Philip C. McKenna was a laboratory assistant the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
