26. Union (USA) veteran John L. Burns was a civilian volunteer, and at nearly 70 years of age, the oldest combatant on either side at Gettysburg, serving with distinction on the first day. In which war did John Burns first serve the United States?
From Quiz Beginning of the Ebb: High Tide at Gettysburg
Answer:
War of 1812
Burns was born in 1793, and at age 18, joined the U.S. Army and fought in the War of 1812, seeing action at Lundy's Lane and other battles. Remarkably, in his 50s, Burns also joined the Army for the Mexican-American War. Twice rejected for duty in the Civil War due to his age, Burns wasted no time when the war came to his town. Swiftly volunteering, he saw action with a Pennsylvania brigade, and when that unit retreated lent himself to the famous Iron Brigade, until wounded. Burns lived until 1872, his gravesite in Gettysburg accorded the rare privilege of 24 hour display of the US flag.