Private First Class Hollman was a member of Company M, 3rd Battalion, 29th Infantry Regimental Combat Team. He was seriously wounded by the enemy in South Korea on September 11, 1950 and returned to duty on October 15, 1950. He was listed as Missing in Action while fighting the enemy in North Korea on the same day. He was presumed dead on March 31, 1954. His remains were not recovered. His name is inscribed on the Courts of the Missing at the Honolulu Memorial.