Henry Thorpe Beal Isaacson was a leader in the Church of Jesus Christ of Latter-day Saints, serving as a counselor in the First Presidency to church president David O. McKay from 1965 to 1970.

The President of the Church is the highest office of the Church of Jesus Christ of Latter-day Saints. It was the office held by Joseph Smith, the church's founder. The church's president is its leader and the head of the First Presidency, its highest governing body. Latter-day Saints consider the president of the church to be a "prophet, seer, and revelator" and refer to him as "the Prophet", a title that was originally given to Smith. When the name of the president is used by adherents, it is usually prefaced by the title "President". Russell M. Nelson has been the president since January 14, 2018.