National Museum of Nuclear Science & History
N. D. Barker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Monroe Messinger was born in New Jersey and grew up in Brooklyn and Long Island. He received a Bachelor of Science degree from the College of the City of New York.
Alfred “Al” Zeltmann was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
W. Harrison worked for the H. K. Ferguson Company.
