Biographical informationSao A Koan (蔡亞昆) was born in about 1870 in Ban Chiu (Hailam) [Hainan Island], China (文昌縣). He migrated to Western Australia in July 1889.
He was recruited in Singapore to work as a general indoor servant under contract to Mackay Brothers, Cossack, for two years at S$9 per month (C).Other nameSao A Koan (differentiated name)蔡亞昆Date of birth1870
