Hi Karen,
Thanks for your reply, unfortunately there seem to be many spellings of Smewing, and I found a few in the online Middlesex marriage index, infact I think I have a Thomas Swewing marriage in Uxbridge around the same time,
But I was trying to find if there was a Snewing family there. In the IGI most seem to come from Oxfordshire with a few in Buckinghamshire, but as the IGI covers Middx so poorly I was hopeing someone would have the Uxbridge PR.
Thanks for your answer
John