Julian Vannerson He-Kha-ka Ma-ne (Walking Elk), A Warrior of the Yankton Sioux ca. 1858 Salt print 7 7/8 x 5 15/16 in. Inquire about this work Share On Facebook Twitter Email Koch Logo Julian Vannerson He-Kha-ka Ma-ne (Walking Elk), A Warrior of the Yankton Sioux, ca. 1858 Salt print 7 7/8 x 5 15/16 in.