Lincoln at Antietam - Historical Civil War Book | American History & Presidential Biography | Perfect for History Buffs & Students

President Abraham Lincoln, between Maj. Allan Pinkerton of the Pinkerton National Detective Agency and Gen. John A. McClernand, visits the Union camp at Sharpsburg, Md., on Oct. 3, 1862, a few weeks after the Battle of Antietam. Lincoln was there to persuade Gen. George McClellan to take his army on the attack against Gen. Robert E. Lee. Pinkerton was Lincoln's bodyguard.