Snow became a general authority and a member of the First Quorum of the Seventy in April 2001. He began service as a member of the seven-man Presidency of the Seventy on August 1, 2007. In that capacity, Snow was responsible for overseeing the work of the church in the North America Central Area and later the three areas in Utah.
On January 10, 2012, Snow's future assignment, to replace Marlin K. Jensen, as Church Historian and Recorder was announced. To effect a smooth transition, Snow was released from the Presidency of the Seventy on January 20, 2012, in order to begin working immediately with Jensen. Snow replaced Jensen in August 2012 and Jensen was designated an emeritus general authority in October 2012.
^ 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.