(1830 - 1882)
Home State: New York
Education: US Military Academy, West Point, NY, Class of 1850
Command Billet: Brigade Commander
Branch of Service: Infantry
He graduated from the USMA in 1850, served on engineering duty (especially surveying), and was an instructor at West Point. He made an extensive survey of the Northern Plains on an expedition 1855 - 57.In May 1861 he was made LCol. of the 5th New York Regiment seeing combat at Big Bethel. In August 1861 he was made Colonel (relieving newly promoted BGen Dury»e), and led the Regiment at Yorktown. He commanded the 3rd Brigade/2nd Division/V Corps at Gaines's Mill (wounded) and at Second Bull Run.
On the Campaign
He commanded the Third Brigade in the Second Division of the Fifth (V) Army Corps.
The rest of the War
Just after the battle he was appointed BGen. of Volunteers and was at Fredericksburg. In May 1863 he was promoted to MGen. of Volunteers, and was chief engineer of the Army of the Potomac (AOP) at Gettysburg (wounded) where his timely deployment of Vincent and Weed's brigades saved the day. He commanded the Second (II) Corps in the Mine Run campaign and Fifth (V) Corps in the Overland campaign.
He was relieved of command by Sheridan at Five Forks. He was later exonerated by a court of inquiry which criticized Sheridan's action in relieving him.
After the War
He continued in Army service in the engineers and was later a writer and railroad bridge builder.