Brian Fagan wrote a nice chapter (not sure which book) about the early adopters of the potato, namely, the Irish — while the rest of You-Rope regarded the potato as, at best, animal feed, the Irish were growing, shipping, and refining their crop, until, whoopsie, accidental genocide.
OTOH, my Irish ancestors left Ireland for America much earlier, probably on the run from the law, or transported. :’)
Population in Ireland
http://www.grantonline.com/grant-family-genealogy/Records/population/population-ireland.htm
http://www.grantonline.com/grant-family-genealogy/Records/population/population-ireland-1100-200.jpg
http://www.mapspictures.com/ireland/history/ireland_population.php
http://www.mapspictures.com/ireland/history/imgCF.gif
http://www.wesleyjohnston.com/users/ireland/past/famine/demographics_pre.html
http://www.wesleyjohnston.com/users/ireland/charts/population_1700_2000.gif
Researchers Have Finally Solved The Mystery Of The Irish Potato Famine
http://www.livescience.com | 5-24-2013 | Denise Chow
Posted on 05/24/2013 9:45:13 AM PDT by blam
http://www.freerepublic.com/focus/chat/3023410/posts
Humble potato ‘must go to Africa’, Germany insists
EurActiv | 21 November 2013 | Dario Sarmadi
Posted on 11/21/2013 1:04:19 AM PST by Olog-hai
http://www.freerepublic.com/focus/news/3093790/posts