Mayors in conflict of interest... a long history

I was thinking of linking Toronto (ex-?) mayor Rob Ford's adventures to those of John George Bowes, the Toronto mayor who brought off "the ten-thousand pounds job" in the 1850s, and had to retire temporarily from the mayoralty, though he soon regained it.

But Daniel Ross has done much better with a broad comparative study of mayoral conflicts across Canada, though more in recent decades than the mid-19th century.  That's at Active History, though Ross also has his own blog, Historian Daniel Ross.