Civil War in Pictures The U.S. Civil War gunboat Cairo is shown in this undated photo. The Union gunboat was sunk on Dec. 12, 1862 while clearing Confederate batteries and obstructions on the Yazoo River, north of Vicksburg, Miss. The Cairo was sunk by explosive charges from detonated electrical mines. Posters like this helped the North obtain 200,000 soldiers from Indiana after the attack on Fort Sumter during the American Civil War. This is an undated photo of Jefferson Davis prior to his inauguration on Feb. 18, 1861 as president of the newly formed Confederate States during the American Civil War. The Confederate White House, home of Confederate leader Jefferson Davis during the Civil War in Richmond, Va., is pictured in 1904. Mary Tepe of 114th Pennsylvania Volunteer Regiment posing for a portrait with miltary decorations. She was awarded the Kearny Cross for her bravery in battle after she was wounded at Fredricksbug, Va., in 1862. Location and date are unknown. (AP Photo) A soldier poses beside his canon at Fort Pulaski in Fort Pulaski, Ga., April 1862, during the Civil War. Abolitionist Frederick Douglass is facing right, seated for a head-and-shoulders portrait at an unknown location. The specific date is unknown, but likely circa 1850-1860. John Wilkes Booth, holding a cane, shown sometime between 1860 and 1865, location unknown. Booth assassinated President Abraham Lincoln at Ford's Theatre, Washington D.C., on April 14, 1865. (AP Photo/Library of Congress) General William Tecumseh Sherman, officer of the Federal Army during the Civil War, stands for a portrait some time between 1860 to 1875. Location is unknown. Gen. George Custer stands for a portrait some time between 1860 to 1865. Location is unknown. The routines of camp life of the 31st Penn. Inf. (later, 82d Penn. Inf.) at Queen's farm, vicinity of Fort Slocum, Washington, D.C., during the Civil War in 1861, is visible. (AP Photo/Library of Congress) An interior view of a slave pen in Alexandria, Va., is pictured some time between 1861 to 1869. Participants crowd around at the first inauguration of President Abraham Lincoln at the U.S. Capitol in Washington, D.C., on March 4, 1861. Lincoln is standing under the wood canopy, at the front, midway between the left and center posts. His face is in shadow but the white shirt front is visible. (AP Photo/Library of Congress) Maj. Gen. Ulysses S. Grant, officer of the Federal Army, shown sometime between 1860 and 1865, location unknown. (AP Photo/Library of Congress) A group of African Americans on J.J. Smith's plantation, Beaufort, S.C., pose for a photograph in 1862. African Americans prepare cotton for the gin on Smith's plantation, Port Royal Island, S.C., in 1862. The 150th Pennsylvania Infantry camp on Belle Plain, Va., is pictured in March 1862, three weeks before the Battle of Chancellorsville, Civil War. The 'Matthews' or 'Stone House,' a key site in Bull Run, Va., in the First Battle of Bull Run during the Civil War, is pictured in March 1862. Harper's Ferry, W. Va., is pictured from a cemetery, March 1862. 20-pdr. v Parrott rifled guns of the 1st New York Battery are pictured in Richmond, Va., June 1862, during the Peninsular Campaign of the Civil War. Dead Confederate soldiers lie by a fence on the Hagerstown road, Antietam, Md., Sept. 1862, following the Battle of Antietam during the Civil War. Allan Pinkerton, President Abraham Lincoln, center, and Maj. Gen. John A. McClernand in Antietam, Md., after the Battle of Antietam on Oct. 03, 1862. (AP Photo/Library of Congress/Alexander Gardner) The 110th Pennsylvania regiment pauses at Falmouth, Va., April 24, 1863. The regiment was nearly annihilated at Battle of Chancellorsville. (AP Photo/Library of Congress/Andrew J. Russell) A dead Confederate soldier in Devil's Den, Gettysburg, Pa., in July 1863. This photograph is titled "The Home of a Rebel Sharpshooter, Gettysburg." Dead Confederate soldiers lie at the edge of the Rose Woods in Gettysburg, Pa., following the Battle of Gettysburg during the Civil War, July 5, 1863. The Drum Corps of the 93rd New York Infantry in Bealeton, Va., in August 1863. Unidentified men sit at a table at the noncommissioned officers' mess of Company D, 93rd New York Infantry, Union Army, in Beatleton, Va., August 1863, during the Civil War. President Abraham Lincoln's Gettysburg Address, in Gettysburg, Pa., on Nov. 19, 1863. A view of a store front with a sign reading "Auction & Negro Sales," on Whitehall Street in Atlanta, Ga., in 1864. Gen. William T. Sherman, leaning on breach of gun, and staff at Federal Fort No. 7 in Atlanta, Ga., in September 1864. Union army troops working on railroad tracks in undated photo. A group of men pause for a photograph during the Battle of Chattanooga, September-November 1863, in Chattanooga, Tenn., during the Civil War. (AP Photo/Library of Congress) The guard mount of 114th Pennsylvania Infantry (1st Division, 3rd Corps), in Brandy Station, Va., in March 1864. Gen. Robert E. Lee, officer of the Confederate Army, shown March 1864, location unknown. Undated image from the Civil War. Confederate prisoners captured at the Battle of Fisher's Hill, Va., in September 1864, sent to the rear under guard of Union troops. Union soldiers rest in trenches before the Siege of Petersburg in Petersburg, Va., Dec. 1864, during the Civil War. This 1865 photograph shows the entrenchments occupied by enlisted men and officers at Fort Sedgwick, Va., during the American Civil War. Heavy artillery duels took place at Fort Sedgwick, also known as Fort Hell. The bomb-proof living quarters are constructed from earth and timber with wooden barrels projecting as chimneys made of wood and mud in place of brick. This photo shows Main Street in Richmond, Va. in 1865. The city is undergoing reconstruction from the fires set in April 1865 during the city's evacuation just before the Confederate surrender at the end of the American Civil War. The spire of Second Baptist Church can be seen in the background. The monitor U.S.S. Onondaga is seen in the background, while soldiers sit in a rowboat in foreground, James River, Va., 1864, during the Peninsular Campaign of the Civil War. President Abraham Lincoln, seated and holding his spectacles and a pencil on Feb. 5, 1865. The McLean House in Appomattox Court House, Va., site of the surrender of Robert E. Lee's surrender to Ulysses S. Grant, is pictured in April 1865. President Abraham Lincoln's box at Ford's Theater is pictured in April 1865. This is the site of Lincoln's assassination. Two men stand beside two Confederate brass mountain howitzers in Richmond, Va., during the Civil War in April 1865. Ruined buildings in the burnt district of Richmond, Va., are visible during the Civil War, April 1865. The interior of Fort Sumter with gabion reinforcements, Charleston, S.C., is pictured during the Civil War in April 1865. The destruction of Charleston, S.C., during the Civil War in April 1865, is visible through the porch of the Circular Church (150 Meeting Street). A group of four young African American boys are sitting at the base of a column. The interior view of Fort Sumter in Charleston Harbor, S.C., is seen during the Civil War, April 1865. The destruction in Charleston, S.C. during the Civil War, April 1865, is visible from roof of the Mills House, looking up Meeting Street. The ruins of the Circular Church are at center. President Abraham Lincoln's funeral on Pennsylvania Avenue in Washington, D.C., on April 19, 1865. Rear view of the camp of Captain John J. Hoff of the Union Army in Gettysburg, Pa., in July 1865. Conspirators in the assassination of President Abraham Lincoln are seen, Washington, D.C., July 7, 1865. Conspirators include Mary E. Surratt, Lewis Payne, David E. Herold, and George A. Atzerodt. (AP Photo/Library of Congress/Alexander Gardner) The death warrant is being read to Henry Wirz on the scaffold, Washington, D.C., November 10, 1865. Wirz was a Confederate officer tried and executed in the aftermath of the American Civil War for conspiracy and murder relating to his command of Camp Sumter, the Confederate prisoner of war camp near Andersonville, Georgia. (AP Photo/Library of Congress/Alexander Gardner) Frank M. Welch, African-American, Maj. Cmdg 5th Battalion, CNG, shown in Bridgeport, Ct., circa 1884. (AP Photo/Library of Congress) Civil War photographer Mathew B. Brady faces forward in a three-quarter length portrait in 1889, at an unknown location.