Union General Jessee Lee Reno graduated from West point in 1846. He ranked eighth in a graduating class of cadets of 59. This was the same class of George B. McClellan. In fact Reno served with McClellan in the Antietam campaign. General Reno had been with John Pope in the defeat of the Second Bull Run. For a time he specialized in artillery. He also served earlier with Burnside in the coastal campaigns. Unlike most of Pope's commanders, Reno had handled his retreat from the Second Bull Run with good order. Clearly his rank in class of 8th when McClellan graduated second served him well. He was more than competent. It's strange that in 1862 he was still a brigadier general, and not higher in rank.
Union General Jesse Lee reno graduated from West Point in 1846. He ranked eight among a graduating class of 59. Reno participated in the Second Battle of Bull Run. He led a Corps that had been used for the battle from General McClellan's Army of the Potomac.
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.
Union General James Birdseye McPherson graduated from the West Point in 1853. He was ranked first in his class of 52 graduates.
Union Major General William T. Sherman graduated from West Point in 1840. Sherman ranked 6th in his class.
General Philip Henry Sheridan graduated from West Point in 1853. He ranked 34th out of a class of 52.
Union General Issac Ingalls Stevens graduated from West Point in 1839. Among the graduating class of 31, General Stevens ranked first. General Stevens was killed at the Battle of Chantilly in 1862.
Union General Jacob Ammen graduated from West Point in 1831. He ranked 12th in his graduating class of 33 cadets. General Ammen was most active in military operations in the Western Theater.
General Ulysses S. Grant
Union General John Porter Hatch was a West Point graduate in 1845. Among the 41 graduating cadets that year, Hatch was ranked 17th. Hatch saw war duty in the Eastern Theater. He served for example in the Peninsula campaign.
Union General Alfred Sully graduated from West Point in 1841. He was ranked 34th in his graduating class of 52 cadets. Sully is best known for his participation in the Peninsula campaign.
Union General Amiel Weeks Whipple graduated from West Point in 1841. He was ranked fifth among his graduating class of cadets numbering 52. General Weeks was mortally wounded at the Battle of Chancellorsville in 1863.
Union General Israel Vodges graduated from West Point in 1837. He was ranked tenth among his graduating class of 50. Vodges is most famous for his part in the Second Battle of Charleston.