I'm an examiner for our GCSE (public exams at age 16) in history and work starts very shortly & will be my prime responsibility for a month or so, but will do what I can by examining the P.R.O. site. It was years rather than months ago that I was carrying out the work I mentioned in Chancery Lane & at that time their computerised index didn't show me anything like this exciting sounding set of documents. I just might be able to fins something relevant in Edinburgh when I visit (alas very briefly) in August. Will report as and when I have anything of interest. Roger