Orson Pratt and Joseph F. Smith report to John Taylor on identity of angel.
Orson Pratt and Joseph F. Smith, Letter to John Taylor, December 18, 1877, Historian's Office Correspondence, Church History Library
The contradictions in regard to the name of the angelic messenger who appeared to Joseph Smith occurred probably through the mistakes of clerks in making or copying documents and, we think, should be corrected. . . . From careful research we are fully convinced that Moroni is the correct name. This also was the decision of the former historian, George A. Smith.