Searching for Information on the Harrison Family Prior to 1801

I am stuck at George Harrison (1801-?) married Sarah Ann Brierly (1801-?)
They were married at the Collegiate Church, Manchester, Lancashire, England on February 11 1823.
It is known that he had one child (Possibly more) which he named George (1824-1871) who married Celia York (Owen) at Parish Church, Yelvertoft, Northamptonshire, England, in 1846.

Any family information prior to George (1801) would be greatly appreciated.

Peter