Union Soldiers at Bayonet Drill in a Camp During the American Civil War (1860's)

Union soldiers at bayonet drill in a camp during the American Civil War, c. 1861-1865. Attributed to Mathew Brady.

Source: National Archives and Records Administration.

Portrait of Union Soldiers of the 56th Massachusetts Volunteer Infantry Regiment Playing a Game of Cards in a Camp During the American Civil War (1860′s)

Portrait of Union soldiers of the 56th Massachusetts Volunteer Infantry Regiment playing a game of cards in a camp during the American Civil War, c. 1860′s. From the book War Diary and Letters of Stephen Minot Weld, 1861-1865 published in 1912.

Portrait of the Drum Corps of an Unidentified Union Regiment Posing in an Encampment During the American Civil War (1860′s)

Portrait of the drum corps of an unidentified Union regiment posing in an encampment during the American Civil War, c. 1860′s. Attributed to Mathew Brady.

Source: National Archives and Records Administration.

Portrait of Union Surgeons and Other Medical Personnel Serving With the 2nd New Hampshire Volunteer Infantry Regiment Posing in Front of a Tent in an Encampment in Bladensburg, Maryland, During the American Civil War (1861)

Portrait of Union surgeons and other medical personnel serving with the 2nd New Hampshire Volunteer Infantry Regiment posing in front of a tent in an encampment in Bladensburg, Maryland, during the American Civil War, August 1861. From the book A History of the Second Regiment, New Hampshire Volunteer Infantry, in the War of the Rebellion published in 1896.

Portrait of Union Soldiers of the 9th Massachusetts Volunteer Infantry Regiment in Camp Cass in Arlington, Virginia (1861)

Portrait of Union soldiers of the 9th Massachusetts Volunteer Infantry Regiment in Camp Cass in Arlington, Virginia, 1861. From Miller's Photographic History of the Civil War.

Union Soldiers Posing in Front of an Encampment Near Corinth, Mississippi, During the Civil War (1860′s)

Union soldiers posing in front of an encampment near Corinth, Mississippi, during the Civil War, c. 1860′s. From Miller's Photographic History of the Civil War.

Animated Stereoview of a Union Soldier Cutting a Comrade's Hair in a Camp During the Civil War (1861)

Animated stereoview of a Union soldier cutting a comrade's hair in an unidentified camp during the Civil War, c. 1861. Originally titled "the amateur barber." Published by E. & H. T. Anthony & Company.

Source.

Portrait of a Group of Unidentified Union Soldiers Posing in Front of a Tent During the Civil War (1860′s)

Portrait of a group of unidentified Union soldiers posing in front of a tent during the Civil War, location unknown, c. 1860′s. Attributed to Mathew Brady.

Source.

Animated Stereoview of Four Union Soldiers and an African American Man Eating a Meal in a Camp During the Civil War (1861)

Animated stereoview of four Union soldiers and an African American man (probably a camp servant) eating a meal in an unidentified camp during the Civil War, c. 1861. By Thomas C. Roche.

Source.

Portrait of Union Soldiers of the 8th Regiment New York State Militia Posing in a Camp (1861)

Portrait of Union soldiers of the 8th Regiment New York State Militia posing in a camp, location unknown, 1861. From Miller's Photographic History of the Civil War.

Portrait of a Group of Union Engineers in a Camp During the Siege of Petersburg (1864)

Portrait of a group of Union engineers in a camp during the Siege of Petersburg, August 1864.

Source.

Portrait of a Group of Union Soldiers and Civilians Posing in Front of a Cottage in an Unidentified Camp During the Civil War

Portrait of a group of Union soldiers and civilians posing in front of a cottage in an unidentified camp during the Civil War. Attributed to Mathew Brady.

Source.

Portrait of Three Union soldiers Posing in Front of a Tent in an Unidentified Camp During the Civil War

Portrait of three Union soldiers posing in front of an adjutant's tent in an unidentified camp during the Civil War. From Miller's Photographic History of the Civil War.

Union Soldiers of the 9th Vermont Volunteer Infantry Regiment Marching Out of Their Camp in New Bern, North Carolina (1863)

Union soldiers of the 9th Vermont Volunteer Infantry Regiment marching out of their camp in New Bern, North Carolina, 1863. From Miller's Photographic History of the Civil War.

Hand-Colored Tintype Portrait of a Union Soldier Posing With a Cannon in an Unidentified Camp During the Civil War

Hand-colored tintype portrait of an unidentified Union soldier posing with a cannon in an unidentified camp during the Civil War.

Source.

Union General William Carlin and His Staff Posing in Front of a Bandstand Occupied by an Unidentified Army Band in Ringgold, Georgia

Union General William P. Carlin and his staff posing in front of a bandstand occupied by an unidentified army band in Ringgold, Georgia, c. 1864. From Miller's Photographic History of the Civil War.

Union Soldiers of the 18th Ohio Volunteer Infantry Regiment Posing in Their Winter Camp Near Chattanooga, Tennessee, During the Civil War

Union soldiers of the 18th Ohio Volunteer Infantry Regiment posing in their winter camp near Chattanooga, Tennessee, during the Civil War.

Source.

Portrait of Union Officers of the 15th Pennsylvania Volunteer Cavalry Regiment Posing in an Unidentified Camp During the Civil War

Portrait of Union officers of the 15th Pennsylvania Volunteer Cavalry Regiment posing in an unidentified camp during the Civil War.

Source.

Union Soldiers of the 71st New York Volunteer Infantry Regiment Preparing a Meal in Front of a Tent in an Unidentified Camp During the Civil War (1861)

Union soldiers of the 71st New York Volunteer Infantry Regiment preparing a meal in front of a tent in an unidentified camp during the Civil War, 1861. Attributed to Mathew Brady.

Source.
More information.

Union Soldiers of the Cleveland Light Artillery Posing With a Cannon in an Unidentified Camp During the Civil War

Union soldiers of the Cleveland Light Artillery posing with a cannon in an unidentified camp during the Civil War. At least three of the people in uniform appear to be women.

Source.