The Sandusky Portland Cement Company, later known as the Medusa Portland Cement Company, was founded here in 1892 by Arthur, Spencer and William Newberry, sons of geologist Dr. John Strong Newberry. Portland cement was manufactured at the Bay Bridge plant for 68 years as the result of rich deposits of clay and marl, discovered during Dr. Newberry's geological survey. In 1913, thousands of barrels of cement from this plant were used in the extensive work of beautifying Buckingham Palace in London.