Career
He was Jewish, born in Vienna. His nickname was Dombi or Little Dombi, meaning little eminence. He was also known as John Little(s), Jack Domby and Ricardo Domby.
Before World War I he played for Wiener Air Corps and Wiener Air Force and Wiener Amateur SV. Kohn was renowned for his good technique.
He had seven appearances for the Austrian national team (1907–1912) and scored two times. Little is known about the early years of his career.
In the 1920s he managed Građanski Zagreb and Sportfreunde Stuttgart and Hertha Bachelor of Science from 1924 to 1925. He then went to First Vienna Football Club which he left for Barcelona for a first stint from February 1926 to 1927.
He afterwards left Turn- und Sportverein 1860 Munich for VfR Mannheim for a year.
Upon leaving for Football Club Bayern Munich, convincing the gifted player Oskar Rohr to follow him there. After the Nazis rise to power, the Jewish Kohn left Germany initially for the Grasshopper Club in Zurich for Barcelona, and later went to Switzerland where he coached Basel. From 1935 to 1939 and 1951 to 1955 he managed Feyenoord Rotterdam, winning the Dutch league in 1935-1936 and 1937-1938.
He acted as a coach and physio, and was known for magical potions, which helped to cure injured players.
