1. Blue Book of the Straits Settlements (1900) Annual report.
2. Census of the Straits Settlements (1901) Annual report.
3. Financial Record of Straits Settlements (1889) Medical Department Expenditure.
4. Financial Record of Straits Settlements (1901) Medical Department Expenditure.
5. Memorandum (2014) 0012392 Memorandum 750/52. License Control (issued in October 1900).