Ya they are still on the map, it seems to happen quiet often in ireland, even though they have been removed for a long time they still appear on the map. Thats why if I find an instance of this happening i normally put it up here just in case someone else goes looking for them. Im sure there would be a local historian and if i do happen to talk to anyone i will enquire but in the case of this stone i would say it was a fairly bog standard standing stone and so its demise might not have been recorded.