Speaking to Colorado Governor Evans, Colonel Chivington, Major Wynkoop and others in Denver (Autumn 1864), as quoted in "The Boy's Book about Indians : Being What I Saw and Heard for Three Years on the Plains" by Edmund Bostwick Tuttle, p. 61, 1873.
Rudyard Kipling (2016). “Collected Works of Rudyard Kipling (Illustrated Edition): 5 Novels & 350+ Short Stories, Poetry, Historical Military Works and Autobiographical Writings from one of the most popular writers in England, known for The Jungle Book, Kim, The Man Who Would Be King”, p.4452, e-artnow (Open Publishing)