US Soldier killed at the Battle of the Little Big Horn. Pvt Tessier enlisted into the U.S. Army at Detroit, MI on November 26, 1866. He was described as 5'7", dark eyes, dark hair with a fair complexion. Tessier's civilian occupation was listed as clerk. On February 24, 1867, Tessier reported for duty at Ft Morgan, Colorado Territory. He was assigned to Company L, 7th U.S. Cavalry Regiment. Company L was commanded by 1st Lt James Calhoun, the brother-in-law of LTC George Armstrong Custer and Captain Tom Custer. At Yorksville, SC, Tessier's enlistment expired on November 26, 1871. He reenlisted back into Company L. During Tessier's enlistments, his daily duties were listed as hospital steward, regimental clerk and assistant to the quartermaster. On January 13, 1872, his rank was listed as sergeant. On April 25, 1872, his rank was listed as private. At the Battle of the Little Bighorn, Company L was attached to LTC Custer's Battalion. Sometime during the battle Tessier was killed. After the battle many bodies from Company L were found on or near Calhoun Ridge and Calhoun Hill. Tessier's body was never reported as being identified. It is likely that his unidentified remains were buried on the battlefield, where they had been found. In 1881 all known battlefield burials were moved to a mass grave on Last Stand Hill.

US Soldier killed at the Battle of the Little Big Horn. Pvt Tessier enlisted into the U.S. Army at Detroit, MI on November 26, 1866. He was described as 5'7", dark eyes, dark hair with a fair complexion. Tessier's civilian occupation was listed as clerk. On February 24, 1867, Tessier reported for duty at Ft Morgan, Colorado Territory. He was assigned to Company L, 7th U.S. Cavalry Regiment. Company L was commanded by 1st Lt James Calhoun, the brother-in-law of LTC George Armstrong Custer and Captain Tom Custer. At Yorksville, SC, Tessier's enlistment expired on November 26, 1871. He reenlisted back into Company L. During Tessier's enlistments, his daily duties were listed as hospital steward, regimental clerk and assistant to the quartermaster. On January 13, 1872, his rank was listed as sergeant. On April 25, 1872, his rank was listed as private. At the Battle of the Little Bighorn, Company L was attached to LTC Custer's Battalion. Sometime during the battle Tessier was killed. After the battle many bodies from Company L were found on or near Calhoun Ridge and Calhoun Hill. Tessier's body was never reported as being identified. It is likely that his unidentified remains were buried on the battlefield, where they had been found. In 1881 all known battlefield burials were moved to a mass grave on Last Stand Hill.