The one and only Catholic Church is St. Patrick's.The yearly picnic is called the Homecoming Picnic or St. Patrick's Bar-B-Que and is held on either the third or last weekend in July. I belive the last one was number 148. As to your ancestors, the best bet is to contact the Humphries County Historical Society in Waverly, TN and ask if they can provide you with any info. You may have to go there yourself. Good luck.