Henry Howe, Historical Collections of Virginia… (Charleston, SC: William R. Babcock, 1852), 334.
JEFFERSON was formed in 1801, from Berkeley; its mean length is 22 miles, breadth 12 miles. The Potomac forms its northeastern boundary; the Shenandoah enters the county near its southeastern border, and flowing in a northeast direction, parallel with the Blue Ridge, enters the Potomac at Harper's Ferry. The face of the country is rolling, and the soil almost unequalled in fertility by any other county in Virginia. "It was settled principally by old Virginia families from the eastern part of the state; and the inhabitants still retain that high, chivalrous spirit, and generous hospitality, for which that race was so remarkable in the palmy days of their prosperity." Pop. in 1840, whites 9,323, slaves 4,157, free colored 602; total, 14,082.