Howling Wolf (Ho-na-nist-to) is among the ledger drawing artists featured in “The Pencil Is a Key: Drawings by Incarcerated Artists." While incarcerated in the US military’s Fort Marion in St. Augstine, Florida, these artists used ledger books acquired in trade or by gift from white traders and military officers to create detailed drawings of personal and cultural histories, which by the late nineteenth century, were threatened under the strains of US government policies of land seizures. . Howling Wolf was a leader of the Bowstring Society, a Southern Cheyenne military organization, who fought against the United States in the Red River War (1874–75), a campaign waged by the US government to displace Southern Plains nations in the area that is now Oklahoma and Texas, then known as Kiowa Territory and Oklahoma Territory. Howling Wolf and other leaders who had refused to cede their land were captured by the US Army and incarcerated in Fort Sill (in present-day Oklahoma) before being tran...