This is from the Barren County Web Page on Roots Web: Barren County, the thirty-seventh in order of formation, lies in south-central Kentucky, midway between Louisville and Nashville, and covers an area of 482 square miles. It is bounded by Hart, Edmonson, Warren, Allen, Monroe, and Metcalfe Counties. Created on December 20, 1798, from parts of Warren and Green Counties, it was named for the barrens, the meadowlands that covers the northern third. 70% of the original settlers came from Virginia; 80% of them were English, Scottish, Welsh, or Irish. My ALLEN ancestors were from Barren County and left there between 1840 and 1842 to settle in Miller County, Missouri.