A recent article maps the major American ancestry by county, and, if ancestry is the reason why folks study a particular type of history, the future of British Studies doesn't look good anywhere in the USA except New England (Jessica Jerreat, “The Map That Shows Where America Came from,” Mail Online, 1 September 2013). And by "British," that mainly means Irish in Massachusetts and Eastern New York. (It doesn't show what is the second largest ancestry claimed in each county, but it is still interesting in terms of identity.) The Appalachians largely think they are American, which might be a political statement, but probably means they are unsure of the background. What might be interesting is to map waves of immigrants over time onto the whole map. Does "English," mean pre-1800 immigration never followed by a significant wave into that area (New Hampshire, Maine) thereafter? (Apologies to the great social history, Kirsty MacColl for use of the title.)
earlymodernengland by Newton Key.