This photograph of President Lincoln standing among a group of soldiers during the Civil War was taken by Alexander Gardner on October 3, 1862. The photograph was taken on the grounds on the Battle of Antietam, which took place in northwestern Maryland on September 17, 1862 and is considered the bloodiest day-long battle in American history. Standing, from left to right, are: Col. Delos B. Sacket, I.G.; Capt. George Monteith; Lt. Col. Nelson B. Sweitzer; Gen. George W. Morell; Col. Alexander S. Webb, Chief of Staff, 5th Corps.; Gen. George B. McClellan; Scout Adams; Dr. Jonathan Letterman, Army Medical Doctor; unknown soldier; President Lincoln; Gen. Henry J. Hunt; Gen. Fitz-John Porter; unknown soldier; Col. Frederick T. Locke, A.A.G.; Gen. Andrew A. Humphreys; Capt. George Armstrong Custer. The original photograph was a glass negative, wet collodion print.

This portrait photograph of President Abraham Lincoln was taken by Alexander Gardner. Lincoln was the 16th President of the United States and served from March 4, 1861 to April 15, 1865. Though Gardner is credited with taking this photograph on November 8, 1863, it was later printed and copyrighted in 1900 by M.P. Rice of Washington, D.C.

This portrait photograph of President Abraham Lincoln was taken by Alexander Gardner on August 9, 1963. The photograph is one from a series taken of President Lincoln just prior to the opening of Gardner's new gallery. Lincoln is holding his glasses in his right hand.

This portrait photograph of President Abraham Lincoln was taken by Alexander Gardner, likely on February 5, 1865. This photograph is from the last series of images taken of President Lincoln, previously thought to have been taken on April 10, 1865, just four days before his assassination at Ford's Theater. Subsequent research has discovered the more likely date of creation to have been February.

This photograph of President Abraham Lincoln and Major General George B. McClellan was taken by Alexander Gardner on October 3, 1862. President Lincoln and Gen. McClellan sit under a tent on the grounds of the Battle of Antietam. The Battle of Antietam took place on September 17, 1862 in northwestern Maryland and is considered the bloodiest day-long battle in American history. The original photograph was an albumen silver print and was published by Mathew Brady.

This retouched portrait photograph of President Abraham Lincoln was taken by Alexander Gardner. The original photograph was taken on February 5, 1865 and is believed to be the last sitting President Lincoln had with Gardner, who had accumulated a large portfolio of images of Lincoln over the years. The addition of the ribbon and the retouched border suggests this reproduction was made after President Lincoln's death on April 15, 1865.

This black and white photograph of President Abraham Lincoln and his youngest son Tad was taken by Alexander Gardner on February 5, 1865. The portrait photograph was originally a gelatin silver print and was taken at Gardner's Gallery in Washington, D.C. This photograph was from the last series of images taken of President Lincoln, previously thought to have been taken on April 10, 1865, just four days before his assassination at Ford's Theater. Subsequent research has discovered the more likely date of creation to have been in February.

This photograph of President Abraham Lincoln was taken by Alexander Gardner on November 8, 1963. In this photograph, President Lincoln is flanked on both sides by two of his private secretaries, John G. Nicolay (left) and John M. Hay (right). Hay later served as Secretary of State under William McKinley and Theodore Roosevelt. Nicolay would begin a diplomatic tenure in France shortly before President Lincoln's assassination in 1865. This photograph was taken in Gardner's Gallery in Washington, D.C.

This photograph by Alexander Gardner shows a north view of the White House during Abraham Lincoln's presidency. Photographed from the central lawn, the north facade appears beyond and iron anthemion-patterned fence. The iron fence was placed along the north edge of the driveway in 1833 and, until its removal in 1872, enclosed a small garden where a bronze statue of Thomas Jefferson was displayed. A similar railing was also installed between the North Portico columns and as a parapet on either side of the portico; both were removed in 1902. The ornamental fences were inspired by an anthemion-band cornice placed in the East Room by architect James Hoban. The statue of Thomas Jefferson was commissioned by Navy Lieutenant Uriah Levy and sculpted in France by Pierre-Jean David d’Angers. It was removed from the White House grounds in in 1874 and placed first in National Statuary Hall and then in the Rotunda, both of which are in the Capitol Building.