John Whitmer Historical Association; Community of Christ Seminary Press
After the death of Joseph Smith, two factions of the church that Smith led became prominent. These factions were led by Brigham Young and Joseph Smith III. These two factions disagreed on succession and doctrine and initially held bitter relations. Historians from these churches proposed exchanging historical documents to broaden their study, but LDS Church leaders were hesitant to approve. LDS Church historian Leonard Arrington started collaborating with RLDS historians in the 1960s and the two churches arranged an exchange of important documents. Arrington forged a friendship with RLDS historians and softened relations between the two churches.