Kentucky:  A History of the State, Battle, Perrin, Kniffin 2nd ed., 1885
Crittenden Co.

R.W. FOSTER was born in Oldham County, Ky., September 17, 1817, and is a
son of Archibald G. and Lucy (Duerson) Foster; the former born in 
Spottsylvania County, Va., and the latter in Caroline County, Va.  His
parents came in an early day to Kentucky, where the father died in 1832,
the mother in 1826.  The father was a member of the Masonic fraternity, 
and had taken all the degrees.  Subject is the eldest of four children,
of whom three are now living: R.W., Anthony M. in Missouri, and Susan,
widow of W.M. Threlkeld.  R.W. began life for himself at the age of
fifteen years, and first learned the house-joiner's trade, at which he
worked as an apprentice for four years.  He subsequently followed the
trade for himself for five years.  He resided in Oldham County until 
1852, when he came to this county, and settled on part of his present
farm.  He first bought about 265 acres, and now owns about 725 acres,
of which there are about 200 acres cleared.  He also pays some
attention to stock raising and trading.  Mr. Foster has never been
married, and for some years past his sister, Mrs. Threlkeld, has been
acting as his housekeeper.  In 1867 Mr. Foster was appointed postmaster
at Hurricane and stills holds the office.

Foster Duerson Threlkeld
=
Oldham-KY Spottsylvania-VA Caroline-VA MO 

http://www.rootsweb.com/~kygenweb/kybiog/crittenden/foster.rw.txt