[Graham Boak]

I advise you to write to Ken Merrick, Jerry Crandall (Eagle publishers) and Ullman, care of their publishers. Jerry (or Judy) Crandall often appears on Hyperscale, and Ullman writes articles for British aircraft modelling magazines, so they should be reasonably easy to track down. They also appear as speakers at UK and US IPMS gatherings, so could be traced by that route.