National Museum of Nuclear Science & History
William Vatter was an American accounting scholar. Vatter was born in 1905 in Cincinnati. In his early years he hoped to be a musician, and he played the violin, viola, piano and French horn.
Eugene S. Grennan served as a 2nd lieutenant in the 509th Composite Group. He was the flight engineer on the Straight Flush during the Hiroshima mission.
Brown worked at the 300 Area at Hanford during the Manhattan Project.