Abstract The Saint Mark's Hospital patient registers (1872-1890) consist of two ledgers listing mining patients' names, ages, complaints, dates of admission and discharge, and, where applicable, death dates. Saint Mark's Hospital was founded in 1872 by the Rt. Rev. Daniel S. Tuttle, the first Episcopal Bishop of Utah. It served as the Salt Lake County hospital from the 1880s to 1912. The hospital was owned and operated by the Episcopal Diocese of Utah until 1987 when it was purchased by the Hospital...