In the 1880s, a group of about 200 faith healers, led by Hiram Preserved Wheat (1822–1903), settled along the Sisquoc River in about 20 separate homesteads. The ruins of their habitations, including the "Manzana Schoolhouse," can be seen to the present day. At the time, they were mistakenly called "Mormons," and the error has been preserved in the name of one campsite along the Sisquoc River in the central part of the wilderness. They built the schoolhouse in 1893, but by 1902 it was closed, and most of the group had left. After the faith healers had left, another settler, Charles Dabney, built a cabin for himself and his family in 1914; it can be seen on a terrace above Manzana Creek.