On 9th September 1894 was born an ace of German aviation from World War I period – Hans Christian Friedrich Donhauser. Donhauser served as a pilot in FA10 unit, than he was transferred to Jagdstaffel 17. During World War I he managed to gain 19 aerial victories. After the war he served in Reichswehr and was promoted to lieutenant. Donhauser died in plane crash on 13th January 1919 near Coblenz.