In 1790, William was from Great Sankey when married Sarah at Prescot. There is only one Warrington or Prescot baptism and that is for William son of Ralph a potter and Ann of Prescot. However, that William also became a potter and married Mary Denton in 1788 at Prescot.
Baptism: 14 Apr 1775 St Elphin, Warrington, Lancashire
Wm. Mather - Son of Jno. Warburton & Martha Mather, Spinr.
Occupation: Husbn.
Notes: Illige.
Register: Baptisms 1760 - 1781, Page 137, Entry 19
Source: LDS Film 1562957
or
Name William Mather
Gender Male
Record Type Baptism
Baptism Date 29 Jun 1760
Baptism Place Grappenhall, St. Wilfrid, England
Father John Mather
Description Grappenhall, St. Wilfrid. BMB
Abode Chelwall, Weaver
or
Possibly the son of Isaac Mather of Warrington who was a joiner