Griffith's Valuation (partial)
[http://www.thecore.com/let_ros/GRIFFITH/]
Maps: baronies, Poor Law Unions, civil parishes
[http://www.thecore.com/let_ros/L_R_maps_sm.html]
Leitrim Genealogy, Accommodation, Maps etc
[http://www.countyLeitrim.com]
1901 census (partial)
[http://www.thecore.com/let_ros/1901census/]
GENUKI Leitrim
[http://www.genuki.org.uk/big/irl/LET/index.html]