Hi Kay,
Just noticed your enquiry for William Corris. I too have Corris' and we are connected. Your William Corris c. 17-3-1799 Patrick a farmer m. Ann Quirk b. circa 1801 Patrick = 3 issue. Father of William was Patrick Corris b. 1765 whose elder brother was William Corris b. 1748. This is my line.
There is another lady Joan who is of your line. I will email her and she can contact you direct.
For more info re 1841 census etc. email me:
robyneclay@ozemail.com.au

Regards, Robyne Claydon