Example image of eyePlorer eyePlorer map for 'George B. McClellan': American Civil War Major general (United States) Army of the Potomac Union Army Union (American Civil War) Confederate States of America Peninsula Campaign Richmond, Virginia Battle of Antietam Abraham Lincoln President of the United States Commander-in-chief Democratic Party (United States) United States presidential election, 1864 Governor of New Jersey List of Governors of New Jersey New Jersey Ulysses S. Grant Ophthalmology Philadelphia Thomas Jefferson University American Revolutionary War Samuel McClellan Woodstock, Connecticut University of Pennsylvania John Tyler United States Military Academy Antoine-Henri Jomini Dennis Hart Mahan A. P. Hill Cadmus M. Wilcox Dabney H. Maury Brevet (military) United States Army Corps of Engineers Mexican–American War Bowie knife Rio Grande Battle of Monterrey Dysentery Malaria Zachary Taylor Battle of Chapultepec Battle of Churubusco Battle of Contreras Captain (United States) Lieutenant general (United States) Winfield Scott Battle of Cerro Gordo Siege of Veracruz Delaware River