No - he was Commanding General of the Union Army of the Potomac
George B. McClellan was a Union
George Brinton McClellan
Union
Union General George B. McClellan had a loyal staff of Union army generals. McClellan's chief of staff was his father in law.
The commander of the Unions Army of the Potomac at Antietam was Major General George B. McClellan.
George Brinton McClellan.
George McClellan
George McClellan
George McClellan
George McClellan
George McClellan
George McClellan