Hi dotty.
On IGI I have found a christening for a Sarah Smith with parents Joseph and Martha on 17th Dec 1820 at Manchester Cathedral, I then looked for a marriage for a Joseph Smith to a Martha and the only possible one I found was to a Martha Pollett on the 2nd Jan 1818 also at the cathedral. I then checked for a christening for a Martha Pollett and the only likely one was for a Martha Pollett in 1879 at Eccles Salford Lancashire. I have also found out that parts of Eccles fell within the Pendleton and Seedley area of Salford, so I am going to assume that the William Smith/Smyth was infact my G/Grandfather. Many thanks for your help regarding this post and I hope your wrist is soon on the mend.
Regards Dave.