Corporal Seaton was a member of the 3rd Battalion, 5th Marines, 1st Marine Division. He was Killed in Action while fighting the enemy house to house in Seoul, South Korea, on 26 September 1950.

For his leadership and valor, Corporal Seaton was awarded the Distinguished Service Cross, the Purple Heart, the Combat Action Ribbon, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal and the Republic of Korea War Service Medal.