I just found this on another message board for Ireland: I learned of these maps courtesy of Tara, whose e-newsletter ResearchBuzz (now sent infrequently, formerly just about daily) had this info on 8/17 (today): "A new digital atlas is available to trace population movement during Ireland famine.??Two new digitized atlases show the levels of emigration during the Great Famine, right up until the rise of the Celtic Tiger in 2002, as well as an analysis of Ireland?s population change.? http://www.irishcentral.com/news/Trace-Irish-Famine-population-with-new-digital-atlas-126827108.html