Welcome Mr. Dowd and thank you for taking up this most worthwhile challenge. I read an article about the restoration where you are quoted as saying " volunteers recently lifted what they thought were walkway flagstones only to learn they were "badly inscribed" tombstones that could be hundreds of years old." - See more at: http://tinyurl.com/p8hews2
I bet you will uncover many more surprises in the months ahead. Please keep us posted!