|Rank||Private First Class U.S. Army|
|Date of Death||February 12 1951|
Korean Service Medal
National Defense Service Medal
Republic of Korea Presidential Unit Citation
Republic of Korea War Service Medal
United Nations Service Medal
Combat Infantryman Badge
For his leadership and valor, Private First Class Mackin was awarded the Bronze Star, the Purple Heart, the Combat Infantryman 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.
Private First Class Mackin was a member of the 38th Infantry Regiment, 2nd Infantry Division. He was Killed in Action while fighting the enemy along the Wonju defense line in South Korea on February 12, 1951.