Qualified mechanic engineering, Chelsea Polytechnic and Royal Air Force Officers, School, 1939-1941; Diploma in Gemmology, Gemmological Association Great Britain, 1950.
Assistant technical editor Motor Transport and Bus & Coach, London, 1936-1938. Feature writer Practical Motorist and Practical Mechanics, 1938-1940. Founder, editor Farm Machinery, 1946, Travel, and Tools and Equipment, London, 1947.
Editor Horological Journal, Goldsmiths Journal, Gemmologist, Industrial Diamond Review, 1947-1962. Founder, public Retail Jeweller, Thomson International, 1961-1986. Founder Diamond Boutique, Maidenhead, England, from 1965.
Consultant Thomson International, London, 1987-1994. Owner N.A.G. Press Ltd., East Anglia, England, 1983-1993. Organizer study tours to world's gem mines, 1965-1988.
Founder, diamond grading course Sir John Cass College, London, 1965.
Freeman, City of London, since 1955. With Royal Air Force, 1940-1946, China, Burma, India Theatre of Operations. Fellow Gemmological Association Great Britain (president 1994-1996), British Horological Institute, National Association Goldsmiths (president 1983-1985), Society Jewelry Historians, Crime Writers Association, Worshipful Company Clockmakers (liveryman), Worshipful Company Turners (liveryman), Worshipful Company Goldsmiths (freeman).
Son of James Eli and Flora Elizabeth (Moore) B.