Here they established the New Philadelphian Congregation, or New Philadelphia Society, constructing a church, a hotel, and other buildings. They soon renamed this community "Löwenburg" (Lion City). Perhaps because of ongoing litigation, and other financial problems, Müller's group decided to sell their communal land in Pennsylvania in 1833. Some community members stayed in Monaca, while others followed Müller and his family down the Ohio River on a flatboat. A number of the ones who followed Müller and his family eventually ended up at the Germantown Colony near Minden, Louisiana. Many stayed in Monaca, however, and not long after Müller and his followers left, a new religious speaker named William Keil showed up in the area in the early 1840s. Keil was able to attract some followers who were former Harmony Society/New Philadelphia Society members, and his group eventually moved away and settled the communal town of Bethel, Missouri, in 1844, and later settled the town of Aurora, Oregon, in 1856. Nevertheless, a number of former Harmony Society/New Philadelphia Society members stayed in Monaca, and perhaps some of their descendants live in the area to this day. In 1840, the area was incorporated as the "Borough of Phillipsburg" from the Moon Township site. The first burgess was Frederick Charles Speyerer, and the first council Edward Acker, Jacob Schaffer, Henry Jung, George Forstner, and Adam Schule. Edward Acker established a "Watercure Sanatorium" in Phillipsburg in 1848, and in 1856 when the borough's first post office was established, it took the name "Water Cure". In 1865, Reverend William G. Taylor bought the Sanatorium buildings for his Soldiers' Orphans Home. The Home, according to one of the students, consisted of a "dormitory, dining room, schoolhouse, bathhouse, woodshed, carpenter shop and a two-acre playground." It burned in 1876. There is a historical marker, located near the point where Fourth Street meets Route 18, which reads: "Water Cure Sanatorium founded 1848 by Dr. Edward Acker. Used hydropathy or water to heal. First hospital in Beaver County. Town's first post office, 1856. Phillipsburg Soldiers Orphans School founded 1866 by Rev. William Taylor. Destroyed by fire 1876. Beaver County Historical Research & Landmarks Foundation". Thiel College was founded here in 1866, and moved to Greenville five years later.