The Sand Creek massacre was a massacre of Cheyenne and Arapaho people by the U.S. Army in the American Indian Wars that occurred on November 29, 1864, when a 675-man force of the Third Colorado Cavalr
A depiction of one scene at Sand Creek by witness Howling Wolf
Treaty of Fort Wise signatory Ó'kôhómôxháahketa of the Cheyenne, known as Little Wolf (more correctly translated as Little Coyote), photographed May 1868 at Ft Laramie
U.S. Volunteers Colonel John Chivington.
A delegation of Cheyenne, Kiowa, and Arapaho chiefs in Denver, Colorado at Fort Weld on September 28, 1864. Black Kettle is second from left in the front row.
Silas Stillman Soule was an American abolitionist, teenage conductor on the Underground Railroad, military officer, and early example of what would later be called a "whistleblower". He is honored as
Sand Creek massacre
…Indians for half a century, acted as guide for Chivington. Prior to the massacre, several of Anthony's officers were not eager to join in the attack. Captain Silas Soule, Lieutenant Joseph Cramer and Lieutenant James Connor protested that attacking a peaceful camp would violate the pledge of safety provided to the Indians…
Captain Silas Soule c. 1864
The "Immortal Ten": the John Doy rescue party, 1859. Twenty-year-old Silas Soule is the second man from the right.
Silas Soule's military record (1865)
Capt. Soule (kneeling front row, far right) with Major Edward W. Wynkoop (front row, left) and Southern Cheyenne Chief Black Kettle at the Camp Weld meeting September 28, 1864.