The last time I was in Llanwonno, around 1995, I could not find the headstone of my grandparents, it was so over grown. Therefore, I would be surprised if that has changed at all, but there again, not only may I be wrong, but I could contact some-one who may have more recent knowledge, if that is of help. I am originally from the mining villlage of Blaenllechau, which is just a couple of miles from the Church, and spent many hours there during my childhood.