- Ph.D. University of British Columbia 1986
- M.A. Honours, University of St. Andrews 1979
- Historical Geography
- Expansion of Europe overseas
- Eastern Canada and northeastern United States
- American cartography in the early 20th century
Current Research and Writing
- Push On, and Keep Moving: Yankee Shipowners and the Antebellum Cotton Trade
Professor Hornsby will be on leave during Academic Year 2016-2017.
Awards and Honors
- University of Maine System Trustee Professor, 2016
- Best “Book/Atlas” and “Best of Show,” Cartographic and Geographic Information Society, for Historical Atlas of Maine, 2016
- Maine Literary Award for Excellence in Publishing, Maine Writers and Publishers Alliance, for Historical Atlas of Maine, 2016
- Globe Award, American Association of Geographers, for Historical Atlas of Maine, 2016
- Pierre Savard Award, International Council for Canadian Studies, for Surveyors of Empire, 2013
- John Lyman Book Award in the category Naval and Maritime Science and Technology, North American Society for Oceanic History, for Surveyors of Empire, 2012
- Publication of the Year Award, Prince Edward Island Museum and Heritage Foundation, for Surveyors of Empire, 2012
- Caird Short-term Research Fellowship, National Maritime Museum, Greenwich, 2007
- Regional History Certificate of Merit (Atlantic Canada), Canadian Historical Association, for Nineteenth-Century Cape Breton, 1993
- Commonwealth Scholarship, 1979-1984
Other Selected Publications & Exhibits
- Curated Exhibition: The Golden Age of American Pictorial Maps. Osher Map Library, University of Southern Maine, April 2016.
- ‘Geographies of the British Atlantic World’ in Britain’s Oceanic Empire: Atlantic and Indian Ocean Worlds, c.1550-1850, edited by H.V. Bowen, Elizabeth Mancke, and John G. Reid, 15-44. Cambridge: Cambridge University Press, 2012.
- ‘Discovering the Mercantile City in South Asia: The Example of Early Nineteenth-Century Calcutta.’ Journal of Historical Geography 23, 2 (1997): 135-151.
- ‘The Gilded Age and the Making of Bar Harbor.’ Geographical Review 83, 4 (1993): 455-469.
- ‘Patterns of Scottish Emigration to Canada, 1750-1870.’ Journal of Historical Geography 18, 4 (1992): 397-417.
- ‘Staple Trades, Subsistence Agriculture, and Nineteenth-Century Cape Breton Island.’ Annals of the Association of American Geographers 79, 3 (1989): 411-435.