The Estellville Glass Factory, built by John H. Scott in 1825 on land owned by the Estells, was part of South Jersey’s thriving early nineteenth-century glass industry and operated as a window-glass works where skilled glass blowers shaped eight-pound globs of molten glass into five-foot hollow cylinders that were flattened and cut into window panes. At its peak it employed as many as eighty men and boys, consisted of about fifteen buildings including the Pot House, Melting Furnace, Flattening House, and Lime Kiln, and supported workers living in ten to twelve nearby houses. Daniel E. Estell bought the business in 1834, with shares also held by his brother John and brother-in-law Josiah Franklin, and the Estells lived in Estellville near what is now Route 50, where the John Estell House, the Estell Mansion, and the company store still stand, though the Methodist church, one-room school, sawmill, and grist mill have disappeared. The Estells’ sailing vessels used nearby Stephens Creek to carry glass to Boston, New York, Philadelphia, and Baltimore and bring back supplies for the company store. Sold to John Baptist Stadler and John Getsinger in 1860, the factory later passed through several owners, was converted to bottle production, and closed in 1887. Its native sandstone construction with brick-headed arches was unusual among early South Jersey glass factories, many of which were lost to fire, and its decline reflected a broader regional downturn as older wood-fueled plants could not compete with newer coal-fueled and steam-powered factories outside South Jersey.