...compromise. In round numbers, Lee had 91,000 infantry and 280 pieces of artillery; marching with that column were about 6,000 cavalry. He adds that Stuart's cavalry, which crossed the Potomac at Seneca , numbered about 5,000 men. Such information as this may have been useful to a commander before a battle, who was very anxious not to underrate his enemy, but is altogether valueless to the histori...