Useful reference to see the housing and population of your area (or town land) was affected by the Great Famine and mass emigration in the 19th Century
1st April 1851
Killukin's townland of Knockacortha (on the Croghan road to Carrick-on-Shannon) saw a staggering drop in population during the Great Famine. In 1841 it was home to 128 souls; by 1851 only 38 remained.
See: Killukin Parish Population (Census results 1841-1881; page 2)