H. Marshall Chadwell was a highly successful chemistry researcher at Tufts University before WWII, who drifted into other interests after the War, including philanthropy work for the Rockefeller Foundation, where he assessed the merits of scientific grant proposals. Somehow, by 1952, we find him as the assistant director of the CIA, heading its Office of Scientific Intelligence. This put him thoroughly in the spotlight in the summer of 1952 when President Truman (alarmed by the unexplained overflights of Washington DC) ordered General Walter Bedell Smith, Director of the CIA, to look into the problem. This duty quickly fell to Marshall Chadwell, who with other operatives such as Fred Durant and Philip Strong, began a five month odyssey which ended in the infamous Robertson Panel assessment of UFOs as a threat to national security.