William R. Brewster

William R. Brewster
Born	(1828-07-27)July 27, 1828 Goshen, Connecticut, U.S.
Died	December 13, 1869(1869-12-13) (aged 41) Brooklyn, New York, U.S.
Allegiance	United States (Union)
Service / branch	Union Army
Years of service	1861-1864
Rank	Brevet brigadier general
Unit	Army of the Potomac
Commands	Excelsior Brigade, III Corps
Battles / wars	American Civil War First Battle of Bull Run Peninsula campaign Battle of Fredericksburg Battle of Gettysburg Mine Run campaign Overland Campaign Battle of the Wilderness Battle of Cold Harbor Siege of Petersburg
Other work	Businessman

William Root Brewster (July 27, 1828 – December 13, 1869) was an officer in the Union Army during the American Civil War who commanded a regiment in the famed Excelsior Brigade of the Army of the Potomac. He later commanded the brigade, including at the Battle of Gettysburg where Brewster and his men were overrun by Confederates while defending the Emmitsburg Road position of the III Corps not far from the Peach Orchard.