Sergeant Shemin entered the Army on October 2, 1917. He was assigned as a rifleman to Company G, 47th Infantry Regiment, which moved from Syracuse, New York to Camp Greene, North Carolina, joining the 4th Infantry Division. The Division arrived in France in May, 1918.
Private Johnson entered the Army on June 5, 1917. He was assigned to Company C, 15th New York (Colored) Infantry Regiment, an all-black National Guard unit that would later become the 369th Infantry Regiment. The Regiment was ordered into battle in 1918, and Private Johnson and his unit were brigaded with a French Army colonial unit in front-line combat.