Illustration of William S. Rosecrans

William Starke Rosecrans (1819-1898) was born in Ohio and despite having no formal education, graduated from West Point in 1842. He did not fight in the Mexican War and went into business as president of the Preston Coal Oil Company. When the Civil War broke out, he became aide-de-camp to Maj. Gen. George B. McClellan…

Illustration of Thomas A. Morris

Brig. Gen. Thomas Armstrong Morris (1811–1904) was a civil engineer from Kentucky who led a brigade under Maj. Gen. George B. McClellan during the Northwest Virginia Campaign. Morris graduated from West Point in 1834 and served as an artillery officer. When the Civil War broke out, he became quartermaster general of the Indiana state militia.…

Illustration of George B. McClellan

George Brinton McClellan was born in Philadelphia and graduated from West Point in 1846. He fought in the Mexican War, and his father was close friends with Maj. Gen. Winfield Scott, who would become overall commander of U.S. forces at the outbreak of the Civil War. McClellan's services were highly sought after, but Ohio Governor…