In the will summaries in ManxNotebook, there is an entry for Thomas Corris, 1833, - a petition by Thomas Corris, John Corris, Patk Corris, Thomas Gawne, Cornelius Clucas + Patk Cubbon. This list of names matches the sons and spouses of daughters of Thomas Corris and Marg't Watterson, except for John Corris. I cannot find a baptism for a John Corris to this couple.

My ancestor John Corris (married Margery Quilliam, then Eleanor Callister) was born 1793 which is right timeframe for this family and his father was Thomas according to his marriage record.

I'm wondering if the text of the petition would be likely to contain any information that would further identify John Corris so I could determine if there might be a connection.