William Thomas Mercer (Chinese: 孖沙; Sidney Lau: Ma1 Sa1) (17 October 1821 – 23 May 1879) was a British colonial administrator who served in Hong Kong from 1844 to 1866.
Early life
Mercer was the third son of George Dempster Mercer, a trader born in India, and Frances Charlotte Reid, then of Edinburgh, Scotland.[1] His parents emigrated to Tasmania and purchased land there in 1835, leaving the young Mercer behind in England. He matriculated from Exeter College, Oxford, on 30 May 1839. He became a student at the Inner Temple in 1842 and went on to earn BA and MA degrees from the University of Oxford in 1843 and 1851, respectively.[2]
Colonial service
Mercer arrived in Hong Kong in 1844 as Private Secretary to Sir John Davis, the second Governor of Hong Kong (1844–1848). Davis, his uncle, then appointed the 23-year-old Mercer acting colonial secretary.[3]: 176 On 24 February 1847, he was appointed Chief Magistrate of Police.[4]