By Joshua MacFadyen and Nolan Kressin*, University of Prince Edward Island
For the full lesson on the historical GIS methods and tools described in this post, see the new tutorial in the Geospatial Historian Methods of Visualizing Temporal Data, by Nolan Kressin and Joshua MacFadyen.
The movement of commodities has been an important study within Canadian scholarship since Harold Innis wrote The Fur Trade in Canada (1930), but many forget that in his earlier thesis on the Canadian Pacific Railway (CPR) Innis also focused on the goods that these lines carried to market each year. By examining the records of the CPR, Innis painstakingly summarized the freight capacity and the market conditions that shaped this chapter in Canadian environmental history. Innis was well-known as a “dirt” researcher, digging into archival collections and often cutting-and-pasting his notes across manuscripts (literally, with scissors) to organize the enormous amounts of information he collected. As historians turn to more focused studies of individual commodities, we can parse large historical datasets with tools beyond scissors and glue. In this piece we discuss new ways to take some of the same historical railway data and focus on resources like firewood and lumber in their natural environments. In theory, we could even use the railway locations to focus on forest types (softwood) or even species. Perhaps if he had these digital tools, Innis’s first book after the CPR study might have been called the “Fir Trade in Canada.”
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