Gregg, David McMurtie
David McMurtie Gregg, 1833–1916, Union general in the Civil War, b. Huntingdon, Pa., grad. West Point, 1855. Gregg served with the cavalry of the Army of the Potomac and was particularly distinguished in the fighting of July 3 at Gettysburg, when he checked Jeb Stuart's attempt to get to the Union rear.
"Gregg, David McMurtie." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (March 24, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/gregg-david-mcmurtie
"Gregg, David McMurtie." The Columbia Encyclopedia, 6th ed.. . Retrieved March 24, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/gregg-david-mcmurtie