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.

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Time-Lapse View of Union Soldiers Posing in Front of A. Foulke's Sutler Hut in the Camp of the 1st Brigade, Horse Artillery in Brandy Station, Virginia

Time-lapse view of Union soldiers posing in front of A. Foulke's sutler hut in the camp of the 1st Brigade, Horse Artillery in Brandy Station, Virginia, February 1864. By James F. Gibson.

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Another photograph of the scene from another angle published in Miller's Photographic History of the Civil War.

Three Group Portraits of Union Officers of the U.S. Horse Artillery Brigade in Fair Oaks, Virginia (1862)

Three group portraits of Union officers of the U.S. Horse Artillery Brigade in Fair Oaks, Virginia, 1862. By James F. Gibson. Animated stereoscopic photographs.

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