National Museum of Nuclear Science & History
H. A. McFadden worked for the Roane-Anderson Company.
John P. McBride was a research assistant in the Chemistry Division at the Chicago Met Lab. He was later assigned to Oak Ridge, where he worked on plutonium purification and on isolating uranium-233 isotopes from thorium.
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.
