Fry and Bacon were colleagues at the Admiralty Experimental Establishment, Fairlie, Ayrshire during the Second World War. Fry was one of Bacon’s oldest associates in the fuel cell work, helping him in the role of scientific adviser during the early years of the fuel cell development when the work was based at Cambridge University. Fry worked at the Atomic Energy Research Establishment, Harwell, and was subsequently a Consultant to Energy Conversion Ltd. 1964-1971 and then Scientific Adviser to Associated Nuclear Services, consulting engineers.