Hi,
I've just come across this discussion. I too have an interest in finding out the connection of Williams in Oxon/Berks with my family (Clinch). I have several ancestors who were christened John Williams Clinch.
John Williams I, b 1878, Witney, d 1871 Witney
He married Elizabeth Philippa Hill Cripps -- hense the second reason for my interet in this discussion!
JW 1 was a brewer and banker in Witney (Clinch & Co)
John Williams Clinch II, b 1814, Witney, d 1861 Witney
John Williams Clinch III, b 1839, Witney, d 1905 Douglas IOM
John Williams Druce Clinch IV, b 1871 Douglas, d 1921, London
The Williams name seems to have stuck for some generatios, so they must have had an impact on the Clinch family - I'd love to find out more.
Regards
Craig