Many natural features in this region went without names until the 1800s. The Shoshone called the mountain range “Teewinot,” meaning “many pinnacles.” French Canadian trappers referred to the Grand, Middle, and South Teton as “Les Trois Tetons,” or “The Three Breasts.” Early explorers called them “Pilot Knobs.” The 1872 Hayden Expedition named Leigh and Jenny lakes after its guide, Richard Leigh, and his Shoshone wife, and even named the Grand Teton “Mount Hayden” briefly. Horace M. Albright served as the National Park Service director from 1929 to 1933. Novelist Owen Wister was an early Jackson Hole visitor. The Nez Perce Indians hunted in the surrounding regions. William O. Owen led the first documented ascent of the Grand Teton in 1898. Thomas Moran sketched and painted scenes for the Hayden Expedition.