Hello Pinetree,
It's very good of you to check those out, thank you very much.
It has helped to eliminate that marriage for the one I'm looking for. In the 1841 census my Jane is age 63 and born Ireland, and husband William Hayton is age 74. In later census, their son Henry gives his birthplace as Pocklington c1821 so it sounds as though there will be some family connection between to the two Williams.
Regards,
Colin