Union General Henry Haupt graduated from West Point in 1835. He was ranked 31st among his graduating class of cadets that numbered 56. Haupt spent much of the US Civil War building bridges and seeing that damaged ones were repaired.
John W. Warren at age 19
Confederate General Edmund Kirby Smith was a graduate of West Point's class of 1845. He ranked 26th in his class.
He graduated from West Point Military Academy
According to An Adjutant General Remembers: a Military Memoir by Major General Kenneth Wickham, he graduated from West Point on 12 June 1938.
General Philip Henry Sheridan graduated from West Point in 1853. He ranked 34th out of a class of 52.
Union General Benjamin Butler did not graduate from West Point. He did have a college education and graduated from Colby College in Maine. He also passed the bar in Massachusetts and practiced law before the US Civil War.
General Ulysses S. Grant
James Longstreet held the rank of major general in the Confederate army. He graduated 54th in the West Point class of 1842.
Major General William Starke Rosencrans graduated in the West Point class of 1842. He ranked fifth in his graduating class.
Union General James Birdseye McPherson graduated from the West Point in 1853. He was ranked first in his class of 52 graduates.
George Washington. West Point had not been created.Note to earlier poster- Grant did graduate from West Point.
Union Major General William T. Sherman graduated from West Point in 1840. Sherman ranked 6th in his class.