Thanks for the interest, trying the North East Memorials. Can't access rsgb.org without joining. Freds call sign in Nairobi was vq4cru in 1937 he reached Norwich, Switzerland and 2 in Holland, postcards verify this. I have a quantity of 'papers' from 1946 to 1971 including exam papers, City and Guilds certificate and a RSGB cert 3/12/1970, this has BRS32541 and states Fred had been elected as a corporate member. There is a letter 26/1/1948 from the Civil Service Commission in London saying his qualification has been granted for wireless technication in the regional wireless service of the Home Office, he was living Dipton, Newcastle upon Tyne. Lots of info, but no proof of what he was doing. Anyone any more ideas? Help much appreciated Carolmc