Frank Moore, ed. Vol. 3. New York: G. P. Putnam, 1862
p. 13
The Massachusetts Thirteenth regiment surrounded the Charleston "Home Guards" Cavalry about two o'clock this afternoon at Beher's [Beeler's] Mill, two and a half miles above Harper's Ferry, Va., and took twenty prisoners, having first killed three and wounded five of the secessionists. The Massachusetts boys brought them in, singing "Gay and Happy." - National Intelligencer, September 3.
Timeline of West Virginia: Civil War and Statehood: September 1861