|Born||May 27, 1910|
|Died||August 9, 1991 (aged 81)|
|Service/||Slovak Air Force|
|Years of service||1939–1944|
|Rank||Nadporučík - Oberleutnant|
|Unit||13 JG 52|
|Awards||War Victory Cross|
Iron Cross 1st Class
Gerthofer had joined the Czechoslovak Air Force in 1927 flying bombers. In 1939, he became a pilot in the Air Force of newly independent Slovakia. After completing training on Messerschmitt Bf 109 fighter aircraft in October 1942, he was appointed deputy commanding officer of 13 JG 52, the Slovak air contingent on the Eastern Front. In 175 sorties he shot down 26 Soviet aircraft.
After the war, Gerthofer served in the re–formed Czechoslovak Air Force before being discharged for political reasons in 1951.
- Rajlich, Jiri; Boshniakov, Stephan; Mandjukov, Petko (2004). Slovakian and Bulgarian Aces of World War 2. Osprey Aircraft of the Aces. Vol. 58. Oxford: Osprey. pp. 66–67. ISBN 1841766526.