|The 1879 Chronical and Directory.
Just thinking about old Trade Directories is likely to trigger a bout of narcolepsy in any sensible human being. Even so, I have recently been absolutely riveted while pouring over the ones from China. It isn’t because of what they reveal in isolation. It is because of the picture that emerges when you match up their data with maps, letters and other bits.
UPDATE: I have just uploaded my transcription of the 1887 Directory of The Peak residents.