George Bird Grinnell (September 20, 1849 – April 11, 1938) was an American anthropologist, historian, naturalist, and writer. Grinnell was born in Brooklyn, New York, and graduated from Yale University with a B.A. in 1870 and a Ph.D. in 1880. Originally specializing in zoology, he became a prominent early conservationist and student of Native American life. Grinnell has been recognized for his influence on public opinion and legislation which ultimately led to the preservation of the American buffalo. Grinnell had extensive contact with the terrain, animals and Native Americans of the northern plains, starting with his participation in the last great hunt of the Pawnee in 1872. He spent many years pursuing the natural history of the region. As a graduate student, he accompanied Lieutenant Colonel George Armstrong Custer’s 1874 Black Hills expedition as a naturalist but declined a similar appointment to the ill-fated 1876 Little Big Horn expedition. (Punke, p. 109) In 1875, Colonel William Ludlow, who had also been on Custer's gold exploration effort, approached him to serve as naturalist and mineralogist on an expedition to Montana and the newly established Yellowstone Park. The expedition reports included an attachment by Grinnell, documenting the poaching of buffalo, deer, elk and antelope for hides. "It is estimated that during the winter of 1874-1875, not less than 3,000 Buffalo and mule deer suffer even more severely than the elk, and the antelope nearly as much." (Punke, pp. 102) His experience in Yellowstone led to the publication of the first of many magazine articles dealing with conservation, the protection of the buffalo, and the American west. In 1885, Grinnell discovered the glacier in Montana that now bears his name and he was later influential in establishing Glacier National Park in 1910. He was also a member of the Edward Henry Harriman expedition of 1899, a two-month survey of the Alaskan coast by an elite group of scientists and artists. Grinnell was prominent in movements focusing on preservation of wildlife and conservation in the American west. For many years, he wrote and published articles and personally lobbied for congressional support for the endangered American buffalo. In 1887, Grinnell was a founding member, with Theodore Roosevelt, of the Boone and Crockett Club, dedicated to the restoration of America's wildlands. Other founding members included General William Tecumseh Sherman and Gifford Pinchot. Grinnell and Roosevelt published the Club's first book in 1895. Grinnell also organized the first Audubon Society and was an organizer of the New York Zoological Society. With the passage of the 1894 National Park Protective Act, the remaining 200 wild buffalo in Yellowstone National Park received a measure of protection, but it was nearly too late for the species. Poaching continued to reduce the animal's population, reaching its lowest number of 23 in 1902. (Punke, pp. 218-219) However, Grinnell's actions led to ongoing efforts by the Department of Interior to find additional animals in the wild and in managed herds to supplement the Yellowstone herd. This ultimately led to a genetically pure viable herd, and the survival of the species. Grinnell was editor of "Forest and Stream Magazine" from 1876 to 1911 and contributed many articles and essays to magazines and professional publications, including: Grinnell’s books and publications reflect his life-long study of the northern American plains and the Plains tribes. Along with J. A. Allen and William T. Hornaday, Grinnell was a historian of the buffalo and their relationship with Plains tribal culture. In "When Buffalo Ran" (1920), he focuses specifically on hunting and working buffalo from a buffalo horse. Grinnell’s best-known works are on the Cheyenne, including "The Fighting Cheyennes", published in 1915, and a two-volume work on "The Cheyenne Indians" (1923). In 1928, he presented the story of Frank Joshua North and Luther North in "Two Great Scouts and their Pawnee Battalion." Other works on the Plains culture area focusing on the Pawnee and Blackfeet people include "Pawnee Hero Stories" (1889), "Blackfoot Lodge Tales" (1892) and "The Story of the Indian" (1895). Of his work President Theodore Roosevelt said: Selected papers by Grinnell were edited by J. F. Reiger in 1972.