A self described "Lincoln freak" claims to have spotted the real Abraham Lincoln in an Alexander Gardner stereograph photo taken at the Gettysburg Address site.

Lincoln has been identified just three times in photos taken at Gettysburg Nov. 19, 1863, and two of those IDs have been challenged, says a new article in Smithsonian magazine.

In March, Charles Oakley, 51, who teaches at the University of North Carolina-Asheville, used an animation and special-effects software program to superimpose Lincoln's features over a miniscule figure in the digital image of the Gardner shot. He said he found Lincoln about to climb the stage, on the left of a clearer image of Secretary of State William H. Seward.