Help with Wallace family from Leitrim, Manor Hamilton and Cloonclare

Hi there- I'm trying to do some genealogy research about my 3rd and 4th great grandparents who were both from the Manor Hamilton/Cloonclare, Leitrim area. I can't seem to get beyond 1800. They appear to be Church of Ireland, my 3rd great grandfather becoming a circuit minister near Philadelphia and Delaware after the familiy emigrated to America.

My mother is 80 yo and is wishing to visit the area finally, and we are hoping to track down some records to piece together their lives in the area a bit, and go back further in the geneaology.

Thank you in advance for any pointers or assistance!

Tod Wohlfarth
New York