Spelter was a company town built in 1910-11 for immigrant, primarily Spanish, workers at the zinc plant, and by 1915 it housed 1,500 residents in 175 homes that rented for $11 per month; first known as Ziesing for a company official, it was named Spelter for its post office in 1928, and it had 3 stores, 2 churches, and 1 school. Moschetta bought the town and sold the houses to families in 1950. A bridge, first a swinging bridge and then an iron bridge in 1914, connected the community to the trolley line. The Spelter Zinc Plant was built by Grasselli Chemical Co. in 1910 and produced zinc products sold nationally. In 1915, it was the largest horizontal retort zinc plant in the U.S. Dupont bought it in 1926, built vertical retort furnaces, and employed 500 workers. From 1916-46 the plant was fueled by local coal. In 1950, it was sold to Meadowbrooks Works. In 1960, major production ceased, and Dupont repurchased the land and completed site remediation in 2004.