Big Foot
Lone Horn's sons were Spotted Elk (later known as Big Foot) and Touch the Clouds, Rattling Blanket Woman was his sister, and Crazy Horse was his nephew. He participated in the signing of the Treaty of Fort Laramie in 1868, which reads "Heh-won-ge-chat, his x mark, One Horn". Old Chief Smoke (1774–1864) was Lone Horn's maternal uncle.