I've been going back through the Gurney surname forum and came across your 2004 reply. You must be descended from one of Solomon's children if you have so many of the birth certificates. Do you happen to have certificates or birth dates for Sarah (c. 1848 Eaton Bray), Hannah (c. 1856 Rugby) and Mary Emily (c. 1866 Rugby). I'm not sure if Mary Emily ever wed. I did find a Sarah's marriage to Richard Thomas Samson on 23 Dec 1878 at Rugby.
Craig Albiston, Houston Texas