William George Stirling, the Assistant Protector of Chinese in Singapore between 1921 to 1931, amassed a collection of secret society artefacts now called the William Stirling Collection. Many of the items were either seized during the implementation of the 1889 Societies Ordinance, reproduced by Stirling as research materials or handed down by William Pickering, the first Chinese Protector. There are two folio notebooks that contain Stirling’s transcriptions. Folio A contains extracts of correspondences related to the Chinese Protectorate and the Triad Society from 1877–89. Folio B contains extracts from the annual Report on Dangerous Societies in 1890.
