Remembered this memorial stone under Carn Meini, its near the modern bluestone brought down by helicopter from the top..If I remember right the stone was dedicated to someone called Ivor (he was Welsh anyway) buried in 1970, though looking at the picture, expect he was cremated first - not enough soil round those rocks to bury a mouse....
http://www.flickr.com/photo_zoom.gne?id=403208412&size=o