'God's Frontiersmen' The Scots-Irish Epic by Rory Fitzpatrick (my second
cousin) who was Senior Producer at Ulster Televison. The book is a companion
volume to the the major Channel Four television series of the same name and tells
the story of the Ulster Scots who emigrated to America in the seventeen
hundreds. There are accounts were these folk were at times more savage than the
native Indians! The book is a rare find but a worthwhile find for the history
buff - it turns up now and then on web bookstore sites.
Also good reading: The Scotch Irish A Social History by James G. Leyburn.
"The Steel Bonnets"; a must read for all Ulster Scots.