1872 The Chronicle & Directory for China, Japan and Philippines | Gwulo: Old Hong Kong
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1872 The Chronicle & Directory for China, Japan and Philippines

Thanks Liz, that's a good resource.

If anyone knows of other years' copies available online, please let us know in the comments below.

Regards, David

Same source as Liz, but there's a quite a bit more here, though not all the material is complete as it focuses mainly on Shanghai:

https://www.bris.ac.uk/history/customs/ancestors/directories.html 

Interestingto note that the entry for Duo Yung, probably the most powerful figure ever in Chinese organised crime, carries the scrawled Chinese character annotation"Siu Ching Bong" , thus correctly identifying him as a Green Gang operative!