1st January 1749
There was a 1749 Census sponsored by the Bishop of Elphin, Church of Ireland. A partial data base can be found on the Leitrim-Roscommon data base. There are records for four civil parishes including Ardcarn, Aughrim, Kilcorkey and Tibohine. http://www.leitrim-roscommon.com/elphin/index.shtml