David, Your message caught my eye because you mentioned your ancestor coming from County Caven, Ireland. We think our John Riley came from there to Connecticut in 1634. He is possibly the grandfather of James Duncan Riley who married Mary "Polly" Nutt in Wake Co. NC. in 1806. James Duncan's descendants migrated to Alabama & Tennessee.
By the way I have a record here for Miles Riley who received a Virginia Colonial Land Grant in Rappahannock Co. in 1663
for 200 acres of land & again in 1665 for 1100 acres. Some one sent this to me & the address looks like http://WWW.geocites.com~rewoodnam/rileyva.(can't
make out the last word) This Miles could have been a descendant of your Miles. Let me know if this helps you.
Opal (Riley) Hinson Hins346@aol.com