Andrew A. Humphreys
Andrew Atkinson Humphreys (November 2, 1810 – December 27, 1883), was a career United States Army officer, civil engineer, and a Union General in the American Civil War. He served in senior positions in the Army of the Potomac, including division command, chief of staff, and corps command, and was Chief Engineer of the U.S. Army.
Read more about Andrew A. Humphreys: Early Life, Civil War, Postbellum