I found a few references to the Richie/Ritchey name in The "Kentucky Gazette Genealogical and Historical Abstracts".The first one is listed with an Anderson, Richard C. Anderson (see note at the end of this e-mail).
Volume III, Number XXXVII, 10 May 1790 "Richard C. Anderson, regarding a military land warrant issued to William Sanders and assigned to John Strode.Mentions: Robert Moffett, Capt. Moore, William Butler, Samuel Richey, James Mayfield, and Richard Cavil".
Volume V, Number IV, 8 October 1791 (and several later issues) "A list of letters left at the printing office: [numerous names listed, including James Richie/Ritchey in Fayette County]. "Samuel Ritchey of Fayette County" listed in some of these.
Volume XI, Number 618, 25 July 1798 "A list of lands to be sold in Washington County to satisfy back taxes due..." [numerous names listed, including "John Richey"]. By the way, Daniel Boone and several other surnames associated with Boonesboro are in the list.
I'm not sure whether or not if any of these are relevant for your research.I am researching the early Anderson lines of central Kentucky (Montgomery, Fayette, Clark, Madison Counties).A few of these Andersons were at Boonesboro (Nicholas, James, John, Aleatha, Mary and Jemima).As you probably know, there was a lot of activity between this part of Kentucky and Chillicothe.
* Richard C. Anderson Col. Richard Clough Anderson (1750-1826) served with distinction in the Revolutionary War, and in 1783 the Governor and council of Virginia appointed him principal surveyor of the lands appropriated by Virginia for soldiers who had served in Virginia state and continental units. The land was located in Kentucky and Ohio; hence, Anderson established his office near Louisville. Upon his refusal to relocate his office to Chillicothe, he was relieved of his post as principal surveyor in 1819.