In the 1890s, the Methodist Church began in Eddystone Village as the Union Sunday School. There were no religious requirements and all people from the village were welcome to attend. The first Superintendent of the Sunday School was John Sipple. The school moved to Lighthouse Hall in 1880, and began to lean toward Methodism. The church was incorporated in 1905. In the 1960s, the church was renamed to the Eddystone Methodist Church.
In the early 1900s, the population was only about 800. By 1920, however, the population had grown to over 2,000, according to the Chester Times. The village was experiencing housing shortages, and investors and companies bought land in the area to erect hotels and houses for workers. In addition, each home took on boarders, which meant that fewer residents in the town. While this would mean less tax money for the town, it did help the town's economy in the long run.
The earliest residents of Eddystone were German and Irish immigrants. The town was established by William Simpson in 1784 and his company, Eddystone Print Works, located on the eastern portion of the city. In 1884, the town had 600 people. In 1899, the town's population grew gradually. According to the Delaware County Directory, there were a total of six hundred people living in Eddystone. In 1899, three of Simpson's sons died. The Print Works property became the property of various trust companies and estates.