1923/1924
After a brilliant playing career at various clubs in Ireland, England and Scotland, earning up to eleven caps for Ireland between 1905 and 1909, Mr O'Hagan enlisted in the British Army during the First World War, spending three years on the French and Belgian fronts.
He would later begin his coaching career at Norwich City in England, arriving in Seville in 1923 under the guidance of the shipping clerk MacAndrew as Mr. Evans, a famous member of the club. He could be considered the first proper coach of Sevilla FC. During his time at the helm of Sevilla (1923/24 season), O'Hagan managed to retain the Andalusian championship title for the club, counting all his matches as victories in that competition.