John Andreas Widtsoe

John Andreas Widtsoe (/ˈwɪtsoʊ/; January 31, 1872 – November 29, 1952) was a Norwegian-American scientist, author, and religious leader who was a member of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints (LDS Church) from 1921 until his death in 1952.