- Repositories of Primary Sources. Links to more than four thousand sites describing the holdings of manuscripts, archives, rare books, historical photos, and other primary sources for researchers.
- Glenbow Archives. One of Canada’s largest private repositories of historical records, including more than a million photographs, 50,000 of which are on line. Don’t miss the shots of the Bar U Ranch, where Sundance worked in 1891.
- The Denver Public Library, Western History Photos. The library has a huge collection of photographs related to western history. The famous “Fort Worth Five” picture of the Wild Bunch is available via this site.
- J. Willard Marriott Library, Photograph Archives. The University of Utah’s collection of photographs related to the region’s history includes images of several members of the Wild Bunch (in the Charles Kelly and Wild Bunch collections). Also, see the Manuscript Division for collections of unpublished historical material.
- Wyoming Tales and Trails. The history of Wyoming as told through old photographs and postcards. Includes pictures of the Super Posse organized to chase the Wild Bunch and the Union Pacific express car blown up by the gang in a holdup near Wilcox, WY, in 1899.
- Pioneer Photography in Bolivia: Directory of Daguerreotypists & Photographers, 1840s-1930s. A biographical dictionary, compiled by Daniel Buck, of daguerreotypists and photographers who worked in Bolivia between the 1840s and the 1930s.
- Luminous Lint. A website devoted to the history of photography around the world. Under “On Line Exhibitions,” “By Geography,” is “Bolivian Mining Photography (1870s-1930s),” curated by Daniel Buck, and as well a sampling of the work of several Western U.S. photographers, including Edward Curtis and Timothy O’Sullivan,