Howard Mathieson's March 11 presentation on the Irish famine, its causes and consequences, was very enlightening. He also shared a reading list on the famine at http://surnameorigins.ca/famine.htm.
I would suggest that you take a look at the main site at http://surnameorigins.ca and check out the links there to surname maps in the British Isles. I believe the link to the geogenealogy website there takes you to the research that Howard has done on surnames in England. It all looks very interesting.
Thanks, Howard, for another educational class!