Complex sentence: The Acting President title was first used in 1918 for Rudger Clawson, and first used simply because of the infirmity of a President of the Twelve for Howard W. Hunter in 1985-88.
Split into simpler sentences: The Acting President title was first used in 1918 for Rudger Clawson. It was used more recently because of the infirmity of a President of the Twelve for Howard W. Hunter in 1985-88.