Trinity Episcopal Church was built of Potsdam sandstone in 1836 by the Clarkson family, with its cornerstone laid in 1835, and it is the only local church still standing that was constructed using the slab-and-binder method. The rectory and all additions were built in the Gothic Revival architectural style, the sandstone office building on Maple Street was built in 1901 in the ashlar style of masonry, and the parish house was added in 1955. Trinity Episcopal Church features windows designed by Lewis Comfort Tiffany of Tiffany Glass, including some signed museum pieces. Ashlar masonry uses rough surfaces and various sizes with no long seams, while slab-and-binder masonry has alternating courses of rough and smooth depending on whether the sandstone grain is vertical or horizontal. Throughout the 19th century, most maps identified the river as the Racket. Its name might come from the French word raquette for snowshoe or from a translation of the Mohawk name for the river, meaning noisy, after the sound of its many rapids. In 1902 and again in 1942, the U.S. Board of Geographic Names designated the river's name as Raquette to minimize its association with tennis, squash, and the numbers racket. Some local residents prefer to put a c in the name, the Sisson family named their mill the Racquette River Paper Company, and SUNY Potsdam's student newspaper is called The Racquette.