Try these links:
http://www.cas.sc.edu/engl/dictionary/articles/HowScotchIrish.doc
http://www.eric.ed.gov/ERICWebPortal/custom/portlets/recordDetails/detailmini.jsp?_nfpb=true&_&ERICExtSearch_SearchValue_0=ED323066&ERICExtSearch_SearchType_0=no&accno=ED323066
also:
http://www.eric.ed.gov/ERICWebPortal/custom/portlets/recordDetails/detailmini.jsp?_nfpb=true&_&ERICExtSearch_SearchValue_0=ED445334&ERICExtSearch_SearchType_0=no&accno=ED445334
http://www.wvculture.org/history/journal_wvh/wvh30-2.html
Excellent! Many thanks.