For an early description, see Gilbert Imlay, A Topographical Description of the Western Territory of North America (London, 3rd ed., 1797), in which John Filson's " Discovery, Settlement and Present State of Kentucke " (1784) is reprinted.
There is much valuable material in the Register (Frankfort, 1903 seq.) of the Kentucky State Historical Society, and especially in the publications of the Filson Club of Louisville.
Plunkett, Ireland in the New Century (London, 1905); Filson Young, Ireland at the Cross-Roads (London, 1904); Thom's Almanac, published annually in Dublin, gives a very useful summary of statistics and other information.