Hi Dave
Like others on this fascinating thread, I have relatives buried in Cathcart Old Parish churchyard. According to an illustration in a book published in 1880, they had a fine monument, like a huge open book, lying flat on the ground, with railings around it. Their surnames were Lee, Smith and Cooper.
Wonder if you've ever seen anything like that during your explorations?
Thanks too for the info about the archaeological survey. I'll be dropping them a line.
Best wishes
Sharon