Background
He was native of Shantung and born in 1886.
He was native of Shantung and born in 1886.
Mr. Sun studied at Peking University and graduated from the Customs College in Peking, China in 1915.
Si-yung Sun worked as a teacher at Tengchow Government School in 1904-1908, secretary of Bad Cross Society in 1910, departmental chief of foreign affairs, Revolutionary Government in Shantung, China in 1911. He also served in the Customs service in Tientsin, China in 1915-1924, Customs service in Shanghai, China in 1924-1927, technical expert, National Tariff Commission and concurrently supervisor of customs surtax bureau in Shanghai, China in 1928, acting Assistant Secretary, (Acting Deputy Commissioner) Inspectorate General of Customs in 1929.