Mr Garcia got "The Proferssors" name but it turns out that befoe he went into show business, Russel Johnson had quite a service record during WW2.
"While flying as a navigator in a B-24 with the 100th Bombardment Squadron, 42nd Bombardment Group, 13th Air Force, his plane and two other B-24s were shot down in the Philippines in March 1945 during a low-level bombing and strafing run against Japanese targets. The planes were hit by intense flak and had to ditch in the waters off the port of Zamboanga. During the ditching, he broke both his ankles and the radioman next to him was killed, he received a Purple Heart for his injuries. He was also awarded the Air Medal, the Asiatic-Pacific Campaign Medal with three service stars, the Philippine Liberation Ribbon with one service star, and the World War II Victory Medal."
Full linky
here.