Henry Edward Cardinal Manning, convert from Anglicanism, Archbishop of Westminster. Author of the Doctrine of Papal Infallibility adopted by the first Vatican Council. Collection consists of correspondence, 1840-1891; literary works by Manning, 1833-1891; literary works by other authors, 1852-1891; printed material from the Vatican Council, 1869-1970; galley proofs, 1883; miscellaneous printed material, 1822-1892; financial records, 1874-1884; photographs, ca. 1865; and miscellaneous material, ca. 1856-1864.