People from Colorado Territory

Lean Bear (Cheyenne name Awoninahku, 1813–1864), alternatively translated as Starving Bear, was a Cheyenne peace chief. He was a member of the Council of Forty-four, a tribal governance devoted to maintaining peace with encroaching United States settlers. Lean Bear's most notable peace deals include the Treaty of Fort Wise and a meeting with US President Abraham Lincoln. His work towards peace between his people and the American settlers in the Southern Plains was cut short when he was killed by the 1st Colorado Cavalry Regiment and violent retaliations ensued.

Charles H. "Colorado Charlie" Utter (c. 1838 – after 1912) was a figure of the American Wild West, best known as a great friend and companion of Wild Bill Hickok. He was also acquainted with Calamity Jane.

Baxter B. Stiles (1824 - September 30, 1889) was an American politician. He served as mayor of Denver, Colorado from 1869 to 1871, and again from 1877 to 1878. Born in Newbury, Vermont, he died in Denver, and is buried in that city's Riverside Cemetery.

Enos T. Hotchkiss (March 29, 1832 - January 20, 1900) was credited as being the founder of both Lake City, Colorado and Hotchkiss, Colorado. He is buried in Colona Cematary, Colona, Colorado. He had nine kids and two wives.

Chief Niwot or Left Hand(-ed) (c. 1825–1864) was a tribal leader of the Southern Arapaho people and played an important part in the history of Colorado. Chief Niwot and his people lived along the Front Range often wintering in Boulder Valley, site of the future Boulder, Colorado. Despite breaching the borders of Arapaho territory, early prospectors were welcomed by Niwot in Boulder Valley during the Colorado Gold Rush. Niwot was thought to have died with many of his people at the hands of the Third Colorado Cavalry in the Sand Creek Massacre, which was one of the precipitating events that led to some three decades of Indian Wars throughout the American West. Throughout Boulder County, many places pay tribute to Chief Niwot and the Arapaho Tribe. The census-designated place of Niwot, Colorado, Left Hand Creek, Left Hand Canyon, Niwot Mountain, Niwot High School, Niwot Elementary, Niwot Ridge and the Left Hand Brewing Company are all named for him. Additionally, a main thoroughfare through Boulder is Arapahoe [sic] Avenue.

Nathan Cook Meeker (July 12, 1817 – September 30, 1879) was a 19th-century American journalist, homesteader, entrepreneur, and Indian agent for the federal government. He is noted for his founding in 1870 of the Union Colony, a cooperative agricultural colony in present-day Greeley, Colorado.

Henry Moore Teller (May 23, 1830 – February 23, 1914) was an American politician from Colorado, serving as a US senator between 1876–1882 and 1885–1909, also serving as Secretary of the Interior between 1882 and 1885. He strongly opposed the Dawes Act, intended to break up communal Native American lands and force assimilation of the people, accurately stating that it was directed at forcing the Indians to give up their land so that it could be sold to white settlers. Among his most prominent achievements was authoring the Teller Amendment which definitively stated that, following the Spanish–American War, the U.S. would not annex Cuba rather that the purpose of their involvement would be to help it gain independence from Spain.

Joseph E. Bates (May 5, 1837 – September 22, 1900) was an American politician who served on the city council and as mayor.

George Washington Clayton (February 22, 1833 - August 15, 1889) was a businessman and philanthropist who left most of his estate to found the Clayton School for Boys in Denver, Colorado. He stipulated it was to be only for white children of good character who were born in Colorado.

William Henry Perkins, better known as "Moccasin Bill" Perkins (December 24, 1825 – November 13, 1904), was a frontiersman, scout, and hunter. Born in Indiana, he learned to trap and hunt as a child when the area was a wilderness. He continually moved west to Missouri, Kansas, central Colorado, and ultimately the Western Slope of Colorado. During the American Civil War, he was a government scout out of Fort Scott and was injured by Native American arrowheads. He tried his hand at farming in Kansas, but yearned for the frontier where he was a hunter, trapper, and miner. He was particularly known for his skill as a bear hunter. He was a friend of Buffalo Bill (William Frederick Cody).