Wikipedia says: Although some historians have dated this photograph during the court session of November 13, 1859, and others have placed it as early as 1853, most authorities now believe it was taken on May 27, 1857. The photographer Amon T. Joslin owned “Joslin’s Gallery” located on the second floor of a building adjoining the Woodbury Drug Store, in Danville, IL. This was one of Lincoln’s favorite stopping places in Vermilion County, Illinois, while he was a traveling lawyer. Joslin photographed Abraham Lincoln twice at this sitting. Lincoln kept one copy and gave the other to his friend, Thomas J. Hilyard, deputy sheriff of Vermilion County. Today, one original resides in the Illinois State Historical Library.
Ostendorf, no. 3
Meserve, no. 2
