Following in the footsteps of the Spaldings, Presbyterian missionary sisters Sue (1830-1893) and Kate McBeth (1832-1915) arrived at Lapwai in 1873 and 1879 respectively to work among the Nez Perce. Sue McBeth, the first unaccompanied female missionary in Idaho Territory, established a successful theological seminary for Nez Perce men. She was proficient in the Nez Perce language and collected and organized a Nez Perce/English dictionary. Her sister, Kate McBeth, educated Nez Perce women and directed the Sabbath School and First Women’s Missionary Society.