Charles Butler (c.1806-1864) was a spring knife manufacturer, who for most of his career lived and worked at Brocco Street.  His early life is obscure and it is unknown if he had any family links to the nearby firm of George Butler & Co.  Apparently, Charles Butler first specialised in scale, spring, and blade manufacture.  In local directories, his works address was Allen Street (1833), Brocco Street (1837), and Jepson Yard, Edward Street (1839).   In 1841, the local directory and the Census listed him at Brocco Street as a spring knife manufacturer.  He was living with his wife, Alice, and a son, William.  In 1851, Charles Butler told the Census that he employed six men.  He died in 1864, aged 58, at Brocco Street and was buried on 10 October at Wardsend Cemetery.  Alice had been buried in the same cemetery on 29 July 1860, aged 50.