• Office Hours:

    Fall 2018: MW 3:20-4:10; Tue 2:00-3:15
  • Role:

  • Position:

    • Professor
  • Concentration:

    • Africa
  • Department:

    • History
  • Education:

    • PhD University of Minnesota 1993



PhD 1993 University of Minnesota Minneapolis. African History.

MA 1984 University of Oregon Eugene. European Economic History/Imperialism.

MA 1982 University of Northern Iowa. German language and literature.

BA 1980 University of Northern Iowa. History and German.


2015-2016: Fellow, International Research Center, Work and Human Lifecycle in Global History, Humboldt University, Berlin.

2008-present: Professor of African History Colorado State University.

2001-2008: Associate Professor of History Colorado State University.

1997-2001: Assistant Professor of History Colorado State University Ft. Collins CO.

1996: Visiting Fulbright Lecturer University of Zimbabwe. East African History.

1993-1997: Assistant Professor of African History Chicago State University Chicago IL.

1989-1993: Lecturer/Adjunct Professor University of Minnesota. African History.


A history of the cattle industry, cattle diseases, and environmental change in Tanzania and the wider world.





Wielding the Ax: Scientific Forestry and Social Conflict in Tanzania c. 1820-2000 (Athens OH: Ohio University Press 2009). Series in Ecology and History. Finalist for the Herskovits Prize 2010.

Vilimani: Labor Migration and Rural Change in Early Colonial Tanzania 1884-1915 (Portsmouth NH: Heinemann 2002). Social History of Africa Series.

Recent Refereed Articles

“Evicted in Dar es Salaam: From Tanganyika Packers to Uptown Kawe,” in Felicitas Hentschke and James Williams (eds.), To Be at Home: House, Work and Self in the Modern World (De Gruyter Oldenbourg), series on Work in Global and Historical Perspective, ed. Andreas Eckert et al, 80-84.

“Forest Policy, Wildlife Destruction, and Disease Ecologies: Environmental Dimensions of World War I in Africa,” in Environmental Histories of the First World War, ed. Richard Tucker, Tait Keller, John McNeill and Martin Schmid (New York: Cambridge University Press, 2018), 231-56.

“International Collaboration and Rivalry in the Early Fight against Rinderpest,” EuropeNow Journal no. 15 (March 2018).

“The African Rinderpest Panzootic, 1897-1898,” 1-33. In Oxford Research Encyclopedia of African History, ed. Thomas Spear. New York: Oxford University Press, 2018.

"Working in the Slaughterhouse: Tanganyika Packers Ltd., from Colonialism to Collapse, 1947-2014," Labor History 59 (2018): 215-37.

"Blood Trials: Transfusions, Injections and Experiments in Africa, 1890-1920," Journal of the History of Medicine and Allied Sciences 71, no. 3 (2016), 293-321.

"The Entangled History of Sadoka (Rinderpest) and Veterinary Science in Tanzania and the Wider World, 1891-1901," Bulletin of the History of Medicine 89 (2015),  92-121.

"Pitsawyers, Rubber Tappers, and Forest Farmers: World War II and the Transformation of the Tanzanian Forests," in Re-Centering Africa in the History of the Second World War, ed. Judith Byfield, Carolyn Brown, Timothy Parsons and Ahmad Sikainga (Cambridge: Cambridge University Press, 2015), 238-56.

"A Political Ecology of Beef in Colonial Tanzania and the Global Periphery 1864 1961," Journal of Historical Geography 39 1 (2013) 29-42.

"Exploiting the Urwald: German Post-Colonial Forestry in Poland and Central Africa 1900-1960," Past and Present 214 (2012), 305-42.

"The War of the Hunters: Maji Maji and the Decline of the Ivory Trade," in James Giblin and Jamie Monson (eds.) Maji Maji: Lifting the Fog of War (Leiden: Brill Press 2010), 117-47.

"Every African a Nationalist : Scientific Forestry and Forest Nationalism in Colonial Tanzania," Comparative Studies in Society and History 49 4 (2007), 883-913.

"The Political Ecology of the Copal Trade in the Tanzanian Coastal Hinterland c. 1820-1905," Journal of African History 48, 1 (2007), 201-220.

"Something Else to Burn : Forest Squatters Conservationists and the State in Modern Tanzania," Journal of Modern African Studies 43 4 (2005), 609-640.

"Working in the Mangroves and Beyond: Scientific Forestry and the Labour Question in Early Colonial Tanzania," Environment and History 11 4 (2005), 365-94.

"Reinterpreting a Colonial Rebellion: Forestry and Social Control in German East Africa 1874-1915," Environmental History 8 3 (2003) 430-51. Reprinted in Owen White (ed.) The Rise and Fall of Modern Empires Vol 1: Social Organization (Ashgate: 2013), 103-24.

"Statist Narratives and Maji Maji Ellipses," International Journal of African Historical Studies 33 3 (2000), 567-84.


  • Hist421- Colonial Africa

  • Hist422 – Modern Africa

  • Hist420 – Precolonial Africa

  • Hist423 – South African History

  • Hist424 – East African History