Career
From a rural background, Gebauer worked on the family poultry farm and at their forge before serving in the First World War with the Fuß-Artillerie-Regiment Near 12. He was awarded the Second Class and the Friedrich-August-Medal for his war service. He became involved in rightist politics in 1924 and joined the Nazi Party at an unknown date.
In the July 1932 election to the Reichstag he was elected to serve as a member for Wahlkreis 3 (Potsdam II) representing the Nazis.
He was not re-elected in November 1932 when the Nazis suffered a sizeable decline in their vote.