Many thanks for your helpful reply. There is a page at the National Archives website with a discussion about the PROB 13 series. Since this was an index I am assuming that the documents that the SoG used for compiling the online PCC will index will give no further detail about the testator or content of the will. For example, is a reference to the PROB 11 copy wills available? It would be helpful if the data description of the PCC will index at SoG Data Online gave the information about the use of the PROB 13 series versus PROB 11 series with a note about the services available at The National Archives. Diana ________________________________ From: MILLARD A.R. <[email protected]> To: diana whistler <[email protected]>; [email protected] Sent: Saturday, March 3, 2012 2:39:02 AM Subject: RE: [SOG-UK] PCC wills > From: diana whistler > Sent: 02 March 2012 21:45 > > Hello All > The SoG online data bases at MySog include an index of PCC wills > for 1750 to 1800. This index was created by the SoG. > > It would be interesting to know how the coverage in > this index compares with the online searching of wills > available at The National Archives Documents Online website. As I understand it the SoG index was compiled from manuscript calendars in series PROB 13, initially onto index cards and then to typescript which was digitised, while the Documents Online digital index has been compiled directly from the registers of copy wills in series PROB 11. There will inevitably be a small number of omissions in both indexes, as well as transcription errors, and it is possible (though I imagine very rare) that a will was omitted from the registers. Best wishes Andrew -- Andrew Millard - [email protected] Bodimeade genealogy:   http://www.dur.ac.uk/a.r.millard/genealogy/Bodimeade/ My family history:     http://www.dur.ac.uk/a.r.millard/genealogy/ GenUKI Middx + London: http://homepages.gold.ac.uk/genuki/MDX/ + ../LND/