↑See also JJ Lee "On the accuracy of the Pre-famine Irish censuses Irish Population, Economy and Society edited by JM Goldstrom and LA Clarkson (1981) p54
↑See also New Developments in Irish Population History, 1700–1850 by Joel Mokyr and Cormac O Grada in The Economic History Review, New Series, Vol. 37, No. 4 (Nov., 1984), pp. 473–488