There are possible Corris/Clucas candidates in the Patrick/German area.
The IGI has two Patrick Corris christening entries:
son of Wm. Corris christened Patrick about March 31 1765
and Patrick Corris, son of Thomas Corris, christened Patrick about December 4 1768.
There are two Margaret Clucas christening entries in German:
April 4 1763 daughter of Patrick Clucas and Ellinor Crellin
May 22 1767 daughter of Phinloh Clucas.