You can contact the Pennsylvania Federation of Black Powder Shooters, Inc. and get a copy of their booklet and map that lists every member club in the organization, including "Olde Westmoreland Rifles" somewhere south of Erie down by Pittsburgh. Contact Mrs. Eleanor Flora, Secretary: 570-275-4349 for membership info & roster of the clubs, etc. Other clubs are also on the western side of PA. She'll be very helpful!
Dave