Private First Class Abrahamsen was a Light Weapons Infantryman with the 32nd Infantry Regiment, 7th Infantry Division. He was Killed in Action while fighting the enemy in North Korea on 15 October 1952.

Abrahamsen was awarded the Purple Heart, the Combat Infantryman's Badge, the Korean Service Medal, the United Nations Service Medal, the National Defense Service Medal, the Korean Presidential Unit Citation and the Republic of Korea War Service Medal.