Hi I have already passed amendments to about 50 sheets I downloaded from the index simply by photocopying what was there already and amending or adding to them manually after which I have sent them off to Graeme Wilson at the Heritage Centre. From what he has said in an email to me they are inundated with requests for information and updates to be carried out. If you are sending information in any other way than I have done be sure to quote the Reference No. on the sheet. Ian A C Scott