There was a large cache of books containing genealogical records waiting for them, according to Kahlie Mehr's article in June 1981 Ensign article titled "The Langheinrich Legacy: Record-Gathering in Post-War Germany."
Near the end of World War II in a salt mine near Strassfurt, Germany, Elder Rudolph K. Poecker, a missionary of The Church of Jesus Christ of Latter-day Saints, put on a miner’s outfit. He accompanied the mine engineer all the way down to the floor some 1,312 feet or 400 meter, as is told in "Hearts Turned to the Fathers," Vol. 34, No. 2, by James B. Allen, Jessie L. Embrey and Kahlile B. Mehr and published by BYU Studies.
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