Photo Portrait of a Group Posing in Front of George Washington's Family Tomb at Mount Vernon, Virginia (1859)

 

Portrait of a group posing in front of George Washington's family tomb on the grounds of Mount Vernon in Fairfax County, Virginia, May 13, 1859. What looks to be three black men, possibly enslaved workers at Mount Vernon, are posing directly in front of the tomb's gate. Taken by photographer Titian Ramsay Peale who signed and dated the photo at bottom right.

Source: National Museum of American History.

Photograph Said to Be Taken During a Slave Auction in the Cheapside Area of Lexington, Kentucky (1862)

Photograph said to be taken during a slave auction in the Cheapside area of Lexington, Kentucky, c. 1861-1862. The man standing on a platform in the center waving his arms looks as though he is an auctioneer. The bovine in the left background might suggest that the photo actually depicts a livestock auction, although Cheapside was the location of a slave market in the period. Originally published in the book Slavery Times in Kentucky by John Winston Coleman.

Source: New York Public Library.
More information.

Animated Stereoscopic Portrait of an African American Woman, Possibly a Slave, Posing on a Sidewalk of a Street Probably in Lexington, Kentucky (1850's/1860's)

Animated stereoscopic portrait of a black woman, possibly a slave, posing on the sidewalk of a street probably in Lexington, Kentucky, c. 1850's/1860's.

Source.

Portrait of a Group of African and Yucatan Indian Slaves and Unidentified White Men on a Plantation in Cuba (1860)

Portrait of a group of African and Yucatan Indian slaves and unidentified white men on a plantation in Cuba, 1860. By George Barnard.

Source.

View of an African American Slave Boy Posing Next to a Pillar and a Sleeping Dog on the Grounds of Accabee Plantation Near Charleston, South Carolina (1860)

View of an African American slave boy posing next to a pillar and a sleeping dog on the grounds of Accabee Plantation near Charleston, South Carolina, c. 1860. By Osborn and Durbec.

Source.
More information.

Hand-Colored Photograph Said to be Taken During the Last Public Slave Auction on Cheapside Street in Lexington, Kentucky (1860's)

Hand-colored photograph said to be taken during the last public slave auction on Cheapside Street in Lexington, Kentucky, c. 1860's. The auction looks as though it is possibly in progress with the figures who are standing over the crowd possibly being the slaves for sale and the crowd in front of them (nearer to the photographer) being the interested buyers. The slave auctions took place on the grounds of the Fayette County Courthouse which is visible at left.

Source.
More information.

A Group of Men Posing at the Entrance of the Mills House Hotel in Charleston, South Carolina (1860)

A group of men posing at the entrance of the Mills House Hotel in Charleston, South Carolina, 1860. By Osborn and Durbec.

Source.

Daguerreotype Portrait of Abolitionists William Lloyd Garrison, George Thompson, and Wendell Phillips Sitting Around a Table (1850)

Daguerreotype portrait of abolitionists William Lloyd Garrison, George Thompson, and Wendell Phillips sitting around a table, c. 1850. Attributed to Southworth and Hawes.

Source.

A Slave-Owning Family Posing in the Front Yard of Their House With at Least Three of Their Slaves Probably Visible Said to be Taken in Kentucky

A slave-owning family posing in the front yard of their house with at least three of their slaves probably visible said to be taken in Kentucky, c. 1850’s. From the book Slavery Times in Kentucky.

Source.

Southern Civilians With Their Slaves in Line to Receive Rations From the Union Army During the Civil War in Beaufort, South Carolina

"A bitter pill." Southern civilians with their slaves in line to receive rations from the Union Army during the Civil War in Beaufort, South Carolina. By Samuel Cooley. Animated stereoview.

Source.
Caption source.

Three Union Soldiers Posing in the Interior of a Slave Pen During the Civil War in Alexandria, Virginia

Three Union soldiers posing in the interior of a slave pen in Alexandria, Virginia, during the Civil War. Animated stereoscopic photographs.

Source.

Daguerreotype Portrait of Abolitionist Passmore Williamson Photographed in His Prison Cell in Moyamensing Prison in Philadelphia, Pennsylvania (1855)

Daguerreotype portrait of abolitionist Passmore Williamson photographed in his prison cell in Moyamensing Prison in Philadelphia, Pennsylvania, 1855. He was imprisoned for 100 days for giving evasive testimony about the role he played in helping to free three African American slaves owned by United States Minister to Nicaragua John H. Wheeler. By John Steck.

Source.
More information.
Wikipedia entry.