Yes, we are certainly related. I'm a descendant of Ellen Theresa Armstrong and Richard W. Maher. I was born in Augusta but left when I was a few months old. While I've been back to Augusta for a few funerals at Magnolia Cemetery, the first time that I went there to look at tombstones was only a week ago. Two years ago I went to Cloonacool, and was able to add a bit more to the "Richard Armstrong Line" information. I'd love to know who was the author of that document. I know it has traveled widely because about ten years ago a distant (and previously unknown) relative in Massachusetts sent me a copy.
I'm heading to Europe soon, so I don't have time right now to assemble a package of information for you. I'm looking forward to comparing notes with you after I return in October.