4th Cavalry Group, Mechanized landed at St. Marcoufs (Utah Beach)

At 0430 Hours 6 June 1944, elements of Troop A, 4th Squadron and Troop B, 24th Squadron landed on the St. Marcoufs.

Corporal Harvey S. Olsen and Private Thomas C. Killeran of Troop A, with Sergeant John S. Zanders and Corporal Melvin F. Kinzie of Troop B, each armed only with a knife, swam ashore to mark the beaches for the landing crafts.

They became the first seaborne American soldiers to land on French soil on D-Day.