General

Search for documents, photographs, prints, and maps at the American Memory Project (Library of Congress)

Territorial Politics

Dakota Territory and Statehood (Institute for Regional Studies, NDSU)

J.B.S. Todd and the Making of Dakota Territory (South Dakota State Historical Society)

History of Yankton (Yankton Daily Press & Dakotan)

Dakota Territory Governors (State Historical Society of North Dakota)

Map of Dakota Territory, 1882 (Library of Congress)

Bird's-eye-view of Bismarck, Dakota Territory 1883 (Library of Congress)

Red River Oxcart Trails Map (State Historical Society of North Dakota)

Onward Christian Soldiers

New England Missionaries in the West (The Magazine Antiques)

Bishop Henry Whipple's Story, Minnesota, 1867 (Faribault Heritage Preservation Commission)

Life on the Reservation — Missionaries (Chicago Historical Society)

Mary Collins and Sitting Bull (South Dakota State Historical Society)

Jesuit Missionaries among the Sicangu Lakota (St. Francis Mission)

Wild West

Conflict Over Indian Lands — The Sioux War (Chicago Historical Society)

Black Elk Speaks: Being the Life Story of a Holy Man of the Oglala Sioux by John G. Neihardt (University of Nebraska)

Reality and Romance: The Women of the Black Hills (Adams Museum & House, Deadwood)

Wild Bill Hickok's Death (American History magazine)

First National Bank of Deadwood 1875 $5 Note (American Numismatic Association)

Historic Photographs of Deadwood (exploitz.com)

Lakota/Dakota/Nakota Language

Lakota Language (Encyclopedia of North American Indians, Houghton Mifflin)

Lakota Language (The most extensive collection of Lakota texts on the Internet)

Dakota and Lakota Dictionaries and Grammars (Another Path)