The Mormons in Salt Lake City, Utah, United States on February 01, 1981.

UNITED STATES - FEBRUARY 01: Mormon Genealogy: Family Tree Family History Library Building, founded in 1894 to gather genealogical records and assist members of The Church of Jesus Christ of Latter-day Saints with their family history and genealogical research. The collection includes over 2.4 million rolls of microfilmed genealogical records; 742,000 microfiche; 310,000 books, serials, and other formats; 4,500 periodicals; 700 electronic resources. At the Last Judgment, the Mormons want to save humanity. For that they must be baptized, and in order to do so registers must be kept. Thus a huge collection was begun 30 years ago. This incredible record is preseved near Salt Lake City in rooms dug into the granite in the "Little Cottonwood" canyon. ** NB 160990 ** (Photo by Francois LOCHON/Gamma-Rapho via Getty Images)