The 
                        photograph was taken by Alexander Gardner in November 
                        1873 in Washington, D.C. That year, a delegation of Northern 
                        Cheyenne and Arapaho from the Red Cloud Agency went to 
                        the capitol with their agent, Dr. John J. Saville, to 
                        discuss their hunting rights as well as their future home 
                        (they were concerned about being political marginalized 
                        when placed at an agency with the powerful Lakota). They 
                        met with a delegation of Southern Cheyenne and Arapaho 
                        in Washington and attended meetings together. They appear 
                        to have gone to Gardner's studio together, who produced 
                        a whole series of great Cheyenne and Arapaho portraits.
                      By 
                        the mid-1870s, Friday's role as an Arapaho leader had 
                        been largely overshadowed by the rise of several younger 
                        men, specifically Black Coal and Sharp Nose. Generally 
                        in the documents of this period, Friday is listed as the 
                        Arapaho interpreter. 
                      — 
                        Ephriam Dickson
                      
                        Friday, 
                        Arapaho
                      Friday 
                        and two other Arapahoe boys had become seperated from 
                        their tribe when a fight started at a large intertribal 
                        gathering. Thomas Fitzpatrick, the mountain man, found 
                        the children on the plains, when he was returning from 
                        the Rocky Mountains to St. Louis. He became so fond of 
                        one of the boys (called Warshinun or Black Spot) 
                        that he took him to St. Louis and sent him to school there. 
                        Fitzpatrick named the boy Friday, because he found him 
                        on that day.
                      He 
                        accompanied Fitzpatrick on several trips west, but one 
                        day a woman in an Arapahoe camp recognized him and claimed 
                        him her son.
                       
                        From then on he returned to his tribe. Because he learned 
                        English in school he could interpret for his head chiefs 
                        and went to Washington several times. Later he himself 
                        became a band chief, who was always on friendly terms 
                        with the whites.
                      Here's 
                        a photo of the delegation in 1873:
                      
                        Crazy 
                        Bull and Friday
                      — 
                        Dietmar Schulte-Möhring
                      
                      This 
                        is the same Friday photographed in the 1877 delegation 
                        - or is this picture even later? Where does the name come 
                        from anyhow? He doesn't seem to have aged much in twenty-six 
                        years.
                     
                     
                      Friday 
                        had several names during his lifetime. As a boy he was 
                        called Black Spot (Warshinun) or Black Coal Ashes. 
                        After a fight with the Pawnees he took one of his father's 
                        names, White Crow. After another fight, this time with 
                        the Shoshones, he took a second name, Thunder.
                       
                        Finally, after being part of a war party that destroyed 
                        a Ute camp of seven lodges near Bear River, he got the 
                        name “The Man Who Sits in the Corner and Keeps his Mouth 
                        Shut” (also translated shortly as Sits Brooding, "teénokúhú").
                       
                        “He says that he and a Ute warrior became engaged at close 
                        quarters; the Ute levelled his gun at Friday's breast, 
                        but the cap snapped and in a second Friday had shot hom 
                        through the body and snatched the loaded gun out of his 
                        dying hand.” (John Gregory Bourke)
                      — 
                        Dietmar Schulte-Möhring