Joseph Eggleston Johnston

Joseph Eggleston Johnston (February 3, 1807 – March 21, 1891) was an American career army officer, serving with distinction in the United States Army during the Mexican–American War (1846–1848) and the Seminole Wars. After Virginia seceded from the Union, he entered the Confederate States Army as one of its most senior general officers.
Johnston was trained as a civil engineer at the United States Military Academy at West Point, New York, graduating in the same class as Robert E. Lee. He served in Florida, Texas, and Kansas. By 1860 he achieved the rank of brigadier general as Quartermaster General of the U.S. Army.
https://en.wikipedia.org/wiki/Joseph_E._Johnston