National Museum of Nuclear Science & History
H. L. Roland worked for the Midwest Piping and Supply Company.
Gastkill worked at the 100-D Area at Hanford during the Manhattan Project.
H. R. Muldoon worked for the Union Carbide & Carbon Corporation.
Marshall Holloway was an American physicist. He received his PhD in physics from Cornell University. In 1942, he directed a secret Manhattan Project assignment at Purdue University.
