Hello Vic I think that your grandfathers birthplace could have been Calthrop, Berkshire which is about 2 Km East of Thatcham and is now regarded as being Thatcham due to the expansion of the latter. The area is now mainly industrial buildings and warehousing Regards Peter Goff Kingsclere, Hampshire, UK www.kingsclere.org.uk All outgoing e-mails are scanned for viruses before despatch. There are no attachments to this message