Two new prepubs you might miss:
http://www.logos.com/product/29823/classics-in-rationalist-philosophy-collectionhttp://www.logos.com/product/29822/classics-in-empiricist-philosophy-collection
Why? From wikipedia:
Alexander Campbell was born 12 September 1788 near Ballymena, in the parish of Broughshane, County Antrim, Ireland. Of Scots-Irish descent, he was educated at the University of Glasgow, where he was greatly influenced by Scottish Enlightenment philosophy. He was also influenced by the English philosopher John Locke.
. . . bit of a tenuous link to your subject heading.
But you remind me of a book I read once:
http://www.amazon.com/Discovering-Our-Roots-Ancestry-Churches/dp/0891120068/ref=sr_1_1?ie=UTF8&qid=1360299104&sr=8-1&keywords=discovering+roots
