Erastus Fairbanks Snow was a member of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints from 1849 until his death. Snow was a leading figure in the Mormon colonization of Arizona, Colorado, and New Mexico.

Orson Pratt Sr. was an American religious leader and mathematician who was an original member of the Quorum of the Twelve Apostles of the Church of Christ. He became a member of the Quorum of the Twelve of the Church of Jesus Christ of Latter-day Saints and was a leading Mormon theologian and writer until his death.