The Cappagh Historical Society has a website at http://cappaghhs.org/ and have published a book, 
It is a beautiful book with some history of the area, followed by recollections of past and present residents. The quality is excellent and it is in color wherever possible (lots of old photographs). It was not a huge printing run, so if you want one, I would order it soon.
Kathleen Cooper
McElrea One-Name Study