Dobak demonstrates that railroads were not necessarily essential to the eradication of buffalo.

For citations on recent literature on bison, see Geoff Cunfer.

Andrew Isenberg, The Destruction of the Bison (New York: Cambridge Univ. Press, 2000).

Dan Flores, "Bison Ecology and Bison Diplomacy: The Southern Plains from 1800 to 1850," Journal of American History 78 (Sept. 1991): 465-85..

William Dobak, "Killing the Canadian Buffalo, 1821-1881," Western Historical Quarterly 27 (Spring 1996): 33-52.

M. John Lubetkin, Jay Cooke's Gamble: The Northern Pacific Railroad, the Sioux, and the Panic of 1873 (Norman: Univ. of Oklahoma Press, 2006), 170.

Elliott West, The Contested Plains: Indians, Goldseekers, and the Rush to Colorado (Lawrence: Univ. Press of Kansas Press, 1998).

Geoff Cunfer, On the Great Plains: Agriculture and Environment (College Station: Texas A&M Univ. Press, 2005), 39-41.