There were more than ten thousand Latter-day Saints in Germany before World War II. Lynn M. Hansen and Faith D. Hansen were sent in 2008 as missionaries of The Church of Jesus Christ of Latter-day Saints to gather oral histories of Mormons who had lived through World War II.
Hansen, Lynn M. and Hansen, Faith D.
"Surviving by Faith: German Latter-day Saints and World War II,"
BYU Studies Quarterly: Vol. 51
, Article 10.
Available at: https://scholarsarchive.byu.edu/byusq/vol51/iss2/10