Jirō Shirasu was born in
Ashiya in
Hyogo Prefecture, on 17 February 1902, the second son of Bunpei Shirasu, a wealthy businessman. Jirō's paternal grandfather Taizō was a prominent samurai of the
Sanda Domain who had supported the
Meiji Restoration, later becoming a businessman and briefly president of the
Yokohama Specie Bank. Taizō had been involved in the founding of the precursor of
Kobe College. American teachers at the school often boarded with the Shirasu household, and Jirō Shirasu learnt English from them at a young age. Shirasu attended
Hyogo Prefectural Kobe High School and graduated in 1921. Afterwards he went to England to further his studies at
Cambridge University at the urging of his father. By his own account, Shirasu was a troublemaker in his youth and him studying abroad had been arranged by his father as a form of "exile." Shirasu enrolled in
Clare College at
Cambridge University in April 1923 and read medieval history. His best friend at Cambridge was Robert Cecil Byng, nephew of
Edmund Byng, 6th Earl of Strafford, and later the 7th Earl. Shirasu adopted the style and manners of an English gentleman. He also cultivated a passion for cars, acquiring both a
Bentley 3 Litre and a
Bugatti Type 35. During winter break in 1925 he made a tour of the European continent together with Byng in his Bentley, driving down to
Gibraltar and back. Shirasu got his degree in 1926 and enrolled in graduate school, intending to become a scholar, but the
Showa financial crisis caused his father’s company to go bankrupt, forcing Shirasu to return to Japan in 1928. == Business career and war years (1928–1945)==