 His father was Ferenc Farkas de Kisbarnak (1849–1937) Prothonotary of Sopron County, and his mother was Gizella Pottyondy de Potyond und Csáford (1864–1921).Gyula's brother was Ferenc Farkas de Kisbarnak, General of the Hungarian VI Army Corps during World War II.In the 1920s Gyula was a coworker of Robert Gragger (1887–1926) at the Hungarian Institute of the Friedrich-Wilhelms-Universität in Berlin.