Cadet U.S. Military Academy July 1 1827, Brevet Second Lieutenant 2d U.S. Artillery July 1 1831, Second Lieutenant July 1 1831, First Lieutenant August 16 1836, Resigned September 30 1836, First Lieutenant Topographical Engineers U.S. Army July 7 1838, Captain May 31 1848, Major August 6 1861, Lieut. Colonel of Engineers March 3 1863, Brig. General and Chief of Engineers U.S. Army August 8 1866, Retired June 30 1879.

Colonel and Additional Aide-de-Camp U.S. Volunteers March 5 1862, Brig. General April 28 1862, Major General July 8 1863, Honorably mustered out of volunteer service Sept. 1 1866, Brevetted Colonel U.S. Army December 13 1862 "for gallant and meritorious service at the Battle of Fredericksburg Va." Brig. General March 13 1865 "for gallant and meritorious service at the Battle of Gettysburg Pa." Major General March 13 1865 "for gallant and meritorious service at the Battle of Sailors Creek Va."

Born November 2 1810 at Philadelphia Pa.

Died December 27 1883 at Washington D.C.

Marker is at the intersection of Emmitsburg Road (Business U.S. 15) and Sickles Avenue, on the right when traveling north on Emmitsburg Road.

Courtesy hmdb.org

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