About Sherry Olson Sherry Olson is a professor emerita in the Department of Geography at McGill University.Patricia Thornton is a professor in the Department of Geography, Planning, and Environment at Concordia University. Books by Sherry Olson Historical GIS Research in Canada contributions by Jennifer Bonnell, Marcel Fortin, Colleen Beard, Stephen Bocking, Jim Clifford, Joanna Dean, Francois Dufaux, Patrick A. Dunae, Jason Gilliland, William M. Glen, Megan Harvey, Matthew G. Hatvany, Sally Hermansen, Andrew Hinson, Don Lafreniere, John S. Lutz, Joshua D. MacFadyen, Daniel Macfarlane, Jennifer Marvin, Cameron Metcalf, Byron Moldofsky, Sherry Olson, Jon Pasher, Daniel Rueck, R.W. Sandwell, Henry Yu & Barbara Znamirowski
