Lutheran, Presbyterian and Methodist churches. During the Germanic era, wine-making and fruit production thrived in Nauvoo. Notable residents from this era include the Swiss memoirist Heinrich Lienhard. During World War I, most of Nauvoo's native-German speaking residents stopped using German in public, and the use of German entirely faded away by the Second World War. In the early and mid 20th century Nauvoo was primarily a Roman Catholic town. Today, a plurality of the population is Methodist or another Christian faith. Nauvoo today On the city's higher ground are the temple, residential areas, and the business district along Mulholland Street (Illinois Route 96), much of it devoted to the needs of tourists and those interested in Latter Day Saint history. The flatlands are occupied by a small number of 19th-century brick houses and other buildings that have survived the city's vicissitudes, with large empty spaces between them where houses and whole neighborhoods have disappeared. Community of Christ owns much of the southern end of the flatlands and maintains several key historic sites in and around Nauvoo, including the Joseph Smith Homestead, the Nauvoo House, the Red Brick Store, the Mansion House, and the Smith Family Cemetery. Guided tours are available at the church's Joseph Smith Historic Site, at the south end of the town and accessible from Highway 96. The Church of Jesus Christ of Latter-Day Saints owns most of the other historic sites in Nauvoo, including the homes of Brigham Young, Heber C. Kimball, and other early members of the church, as well as other significant buildings. Most of these sites are open to the public, with demonstrations and displays, and there are self-guided driving tours as well as wagon tours. These tours are free, as are the stage and riverside theatrical productions. There is a large visitors' center complete with two theaters and a relief map of 1846 Nauvoo. The creation of Nauvoo as a historical tourism destination was largely a result of the work of J. LeRoy Kimball (1901–1992). Kimball was a descendant of early LDS leader Heber C. Kimball, and bought his ancestor's home in 1954 with the intention of restoring it. He was the president of Nauvoo Restoration, Inc. from 1962 to 1986. A Church of Jesus Christ of Latter-Day Saints congregation was established in Nauvoo in 1956, from its inception consisting largely of elderly LDS couples serving as missionaries and historical guides. The City