County of Christian, Kentucky.  Historical and Biographical.  Edited by 
William Henry Perrin.  F. A. Battey Publishing Co., 1884, pp. 381-382.

JUDGE A. V. LONG.  One of the very early settlers of Christian County, and
among those who have long since been gathered to their fathers, was Thomas
S. Long, the father of Judge A. V. Long, who is now a resident of the city
of Hopkinsville; was born in this county and has lived here all his life. 
Thomas S. was the son of Gabriel Long, the head of an old Virginia family,
and who fought for American Independence in the war of the Revolution. 
Lucy Slaughter, who became the wife of Thomas S. Long, was the daughter of
Col. John Slaughter, who also served as a Revolutionary soldier from
Culpeper County, Va.  Mr. Long, on first coming to the State of Kentucky in
1803, settled in Logan County, where he remained but a few years, and from
there he came to Christian County probably in 1806.  He was a plain, honest
farmer, and died near Hopkinsville in the year 1826; his wife, Lucy Long,
survived him nearly forty years, and died in Hopkinsville, in March, 1866. 
They had five children, of whom Judge A. V. Long is the eldest and only
representative now living in the county; he has never married, but during
the life of his mother devoted himself to the pleasant task of securing to
her the comforts of life; he is a man of kind and generous impulses,
possessed of more than ordinary mind, as well as a remarkable memory, which
characteristics have rendered him of very great service to the writers of
this history; his knowledge of this county is second perhaps to no one now
living in it, he having made it his life-long home, and for eight
consecutive years served as Judge of the County Court.

Long Slaughter 
=
Culpeper-VA Logan-KY

http://www.rootsweb.com/~kygenweb/kybiog/christian/long.av.txt