Sergeant Alumbaugh was a medic with the Ambulance Company, 7th Medical Battalion, 7th Infantry Division. He was listed as Missing in Action while tending his wounded comrades in North Korea on November 28, 1950. He was presumed dead on December 31, 1953. His remains were not recovered.

Through the work of the Defense POW/MIA Accounting Agency, the remains of Sergeant Lloyd A. Alumbaugh were accounted for in 2020. His name is permanently inscribed on the “Courts of the Missing” at the Honolulu Memorial.