Portrait of a Union Soldier Posing With a Pocket Auger During the Civil War

Portrait of a Union soldier posing with a pocket auger during the Civil War, c. 1862. By Andrew J. Russell.

Source.

People Posing Around the USS Constitution as it is Being Overhauled at the Portsmouth Navy Yard in Kittery, Maine (1858)

People posing around the USS Constitution as it is being overhauled at the Portsmouth Navy Yard in Kittery, Maine, May 27, 1858. Believed to be the oldest known photograph of the USS Constitution. By Albert Gregory.

Source.

Two Photographs of Union Soldiers Posing With a Captured Confederate 18-Pounder Cannon Nicknamed “Whistling Dick” (1863)

Two photographs of Union soldiers posing with a captured Confederate 18-pounder cannon nicknamed “Whistling Dick.” The gun was responsible for sinking the Union gunboat USS Cincinnati during the Siege of Vicksburg on May 26, 1863.

Source.
Second image from Miller's Photographic History of the Civil War.

View of Smoke From Artillery Fire Coming From the Russian Redoubts of Mamelon and Malakoff During the Siege of Sevastopol Taken From Allied Lines (1855)

View of smoke from artillery fire coming from the Russian redoubts of Mamelon and Malakoff during the Siege of Sevastopol taken from Allied lines, 1855. Possibly the first combat photograph ever taken. By Roger Fenton.

Source.

Daguerreotype Self-Portrait of Isaac Wallace Baker Posing at the Entrance of Batchelder’s Daguerrian Saloon, a Mobile Photography Studio Set Up For Business Somewhere in California

Daguerreotype self-portrait of Isaac Wallace Baker posing at the entrance of Batchelder’s Daguerrian Saloon, a mobile photography studio set up for business somewhere in California, c. 1851.

Source.
More information 1.
More information 2.

Daguerreotype Portrait of a Folk Artist Posing With a Wooden Chain

Daguerreotype portrait of a folk artist posing with a wooden chain, c. 1855.

Source.

Daguerreotype Portrait of an Unidentified Man Posing With a Cat (1840's/1850's)

Daguerreotype portrait of an unidentified man posing with a cat, c. 1840's/1850's.

Source.

Union Soldiers in a Makeshift Camp Possibly in New Orleans After the Civil War

Union soldiers in a makeshift camp possibly in New Orleans after the Civil War, c. 1865. Theodore Lilienthal. Animated stereoview.

Source.

Photograph Taken During the Second Battle of Fredericksburg Showing Battle Smoke Drifting Through Downtown Fredericksburg, Virginia (1863)

Photograph taken during the Second Battle of Fredericksburg showing battle smoke drifting through downtown Fredericksburg, Virginia, May 3, 1863. A number of Union soldiers are standing/possibly moving on the pontoon bridge crossing the Rappahannock River in the middle ground. By Andrew J. Russell.

Source.

Hand-Colored Ambrotype Portrait of a Union Soldier of the 13th Tennessee Volunteer Cavalry Regiment During the Civil War

Hand-colored ambrotype portrait of a Union soldier of the 13th Tennessee Volunteer Cavalry Regiment during the Civil War.

Source.

Portrait of Union Officers of the U.S. Horse Artillery Brigade Posing With a Cannon in Fair Oaks, Virginia (1862)

Portrait of Union officers of the U.S. Horse Artillery Brigade posing with a cannon in Fair Oaks, Virginia, June 1862.  By James F. Gibson. Animated stereoscopic photographs.

Source.

View of a Recently Destroyed Richmond, Fredericksburg, and Potomac Railroad Bridge Over the North Anna River in Virginia (1864)

View of a recently destroyed Richmond, Fredericksburg, and Potomac Railroad bridge over the North Anna River in Virginia, May 25, 1864. By Timothy O'Sullivan. Animated stereoscopic photographs.

Source.

Hand-Colored Tintype Portrait of a Union Soldier During the Civil War

Hand-colored tintype portrait of a Union soldier during the Civil War.

Source.

Ambrotype Portrait of an Unidentified Union Soldier With a Hardee Hat During the Civil War

Ambrotype portrait of an unidentified Union soldier with a Hardee hat during the Civil War.

Source.

Portrait of Confederate Soldier Henry Howe Cook (1861)

Portrait of Confederate soldier Henry Howe Cook, April 1861. He served with Company D of the 1st Tennessee Infantry Regiment and Company F of the 44th Tennessee Infantry Regiment during the Civil War. From Miller's Photographic History of the Civil War.

Two Scenes of Union Soldiers of the 1st Indiana Heavy Artillery Regiment Posing With a Cannon in a Fortified Position During the Siege of Port Hudson in Louisiana (1863)

"East view from Port Hudson." Animated stereoview.

Two scenes of Union soldiers of the 1st Indiana Heavy Artillery Regiment posing with a cannon in a fortified position during the Siege of Port Hudson in Louisiana, 1863. By McPherson and Oliver.

Source 1.
Source 2.

Daguerreotype Portrait of a Stonecutter Posing With a Hammer and Chisel

Daguerreotype portrait of a stonecutter posing with a hammer and chisel, c. 1850.

Source.

Daguerreotype Portrait of Four Shoemakers Posing With Their Tools and Shoes

Daguerreotype portrait of four shoemakers posing with their tools and shoes, c. 1850.

Source.

Union Musicians From the Band of the 125th Ohio Volunteer Infantry Regiment Posing With Their Instruments in a Camp Near Nashville, Tennessee, During the Civil War

Union musicians from the band of the 125th Ohio Volunteer Infantry Regiment posing with their instruments in a camp near Nashville, Tennessee, during the Civil War. From Miller's Photographic History of the Civil War.

Union Soldiers Posing Next to U.S. Army Corps of Engineers Ambulance Wagons Near Falmouth, Virginia (1863)

Union soldiers posing next to U.S. Army Corps of Engineers ambulance wagons near Falmouth, Virginia, April 1863. By Timothy O'Sullivan. Animated stereoscopic photographs.

Source.

Hand-Colored Tintype Portrait of a Group of Unidentified Union Musicians During the Civil War

Hand-colored tintype portrait of a group of unidentified Union musicians during the Civil War.

Source.

Union Soldiers of the 1st Michigan Volunteer Infantry Regiment Posing Around the Entrance to Fort Wayne in Detroit, Michigan (1861)

Identified as men of the 1st Michigan Volunteer Infantry Regiment. Animated stereoview.

Identified as men from Company C of the 2nd Michigan Volunteer Infantry Regiment.

Two photographs of Union soldiers from Company C of the 2nd Michigan Volunteer Infantry Regiment and/or the 1st Michigan Volunteer Infantry Regiment posing around the entrance to Fort Wayne in Detroit, Michigan, 1861. Some of the men appear to be the same in both photographs, so I believe the men are either all of one regiment or the other or else are possibly a mixture of both regiments. By Jex Bardwell.

Source 1.
Source 2.

Tintype Portrait of Union Soldier Corporal Sidney S. Goodridge Posing in Front of a Hut at Camp Benton Near Edwards Ferry, Maryland, During the Civil War

Tintype portrait of Union soldier Corporal Sidney S. Goodridge posing in front of a hut at Camp Benton near Edwards Ferry, Maryland, during the Civil War. He served with Company K of the 20th Massachusetts Volunteer Infantry Regiment and Company B of the 4th Massachusetts Heavy Artillery Regiment.

Source.

The Body of a Dead Soldier Who Died Fighting During World War 1 in Fleury, France

The body of a dead soldier who died fighting during World War 1 in Fleury, France. Animated stereoview.

Source.

The Bodies of Dead Confederate Soldiers in a Trench in Fort Mahone Shortly After the End of the Siege of Petersburg near Petersburg, Virginia (1865)

The bodies of two or three dead Confederate soldiers in a trench in Fort Mahone shortly after the end of the Siege of Petersburg near Petersburg, Virginia, April 3, 1865. By Thomas C. Roche. Animated stereoview.

Source.

View of the Washington Navy Yard With the Anacostia River in the Background in Washington, D.C. (1850)

View of the Washington Navy Yard with the Anacostia River in the background in Washington, D.C., July 1850. By the Langenheim brothers.

Source.

Union Soldiers and Civilians Posing With Artillery at the Washington Arsenal in Washington, D.C., During the Civil War

Union soldiers and civilians posing with artillery at the Washington Arsenal in Washington, D.C., during the Civil War.

Source.