Pvt Atcheson was described as 5'5" tall, hazel eyes, brown hair with a fair complexion. His civilian occupation was listed as brick molder.

During the Civil War, Atcheson enlisted into the volunteer army & was eventually promoted to the rank of sergeant. After the Civil War, he enlisted into the regular army.

Between April of 1868 & May of 1868, Atcheson served as an orderly to General Phil Sheridan.

On August 21, 1871, while posted at Meridian MS, Atcheson's enlistment expired. He reenlisted the same day & was assigned to Company F, 7th US Cavalry.

At the Battle of the Little Bighorn, Company F was attached to LTC George Armstrong Custer's battalion. Sometime during the fighting Atcheson was killed.

After the battle many soldiers from Company F were found on or near Last Stand Hill.

There was no record that Atcheson's remains were identified. It was likley his unidentified remains were first buried where they had been found.

In 1881 all known battlefield burials were moved to a mass grave on Last Stand Hill. Burial:
Little Big Horn Battlefield National Monument
Little Big Horn Battle Site
Big Horn County
Montana, USA
Plot: Mass Grave Last Stand Hill

Thomas Atcheson