These individuals include people in his Liverpool circle, while he was at Liverpool University and living in Liverpool, before and after his time at Los Alamos. These individuals include: Holt; TG Pickavance, Michael J Moore, Paul Howard-Flanders, Bernard B Kinsey, Jim Hughes who went to Los Alamos and Jean Thomson. Those from his Los Alamos, Santa Fe, New Mexico circle include Elspeth Grant Bobbs; Herb Bridge; James and Aileen Chadwick; Otto Robert Frisch; Janine Lazard, later Winocour; Berenice Brode, Philip B Moon and others. Quite a number of these correspondents, not only those from the Liverpool and Santa Fe circles, knew each other and they refer to one another in the correspondence. This has mostly been indicated by cross references.