^Carrington's excommunication, the death of John Taylor and the reorganization of the First Presidency, and the death of Erastus Snow created three vacancies in the Quorum of the Twelve which were filled by the ordination of three new apostles.
^ abIn 1837 the callings of Church Historian and Church Recorder were separated, but in 1842 these callings were again merged.
^Starting in 1978, the duties of Church Historians fell to the Executive director of the historical department.
^While Larsen was still technically Church Historian until 1997, others succeeded him as Executive Director of the Historical Department, and those men were sometimes referred to as the Official Church Historians.
^In 2005 the callings of Church Historian and Church Recorder was restored.