Landmark
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Public Square
The square has gone by several names over the years, such as Central Square, Pershing Square after World War I, and Kennedy Square after President John F. Kennedy’s assassination, though “The Diamond” remains the common name. It continues to serve as the heart of downtown New Castle, surrounded by historic and municipal buildings, and features
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The Diamond
The Diamond in New Castle, Pennsylvania, is a historic public square located at the intersection of Washington and Jefferson Streets in downtown New Castle. It was part of the original town plat laid out in 1798 by surveyor John Carlysle Stewart, who designed the town around this open market space measuring approximately 440 by 190
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McConnell’s Mills
The original mill was built in 1852 by Daniel Kennedy on Slippery Rock Creek and was later acquired by Thomas McConnell in 1875. McConnell upgraded the mill with new technology, making it one of the first rolling mills in the country, processing corn, oats, wheat, and buckwheat for local farmers. The mill operated until 1928
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Monument
The Soldiers Monument is dedicated to the local men who died fighting in the American Civil War. The monument features a statue of a lone Union soldier placed atop a large granite base. The statue was sculpted by John Hart and was officially dedicated on Memorial Day, May 30, 1898. The square was named “Kennedy
