Gibson Loudin was born in Newcomb, Tennessee, son of Gibson Loudin and Martha Elizabeth Allen. He married Rhoda Perry on 25 September 1950 in Lucas, Ohio.
Sergeant Loudin was a medic with the Medical Detachment, 2nd Engineer Combat Battalion, 2nd Infantry Division. He was Killed in Action while tending his wounded comrades in North Korea. He was awarded the Silver Star posthumously.
Buried at Hillcrest Cemetery, Kenova, West Virginia