John Clayton Nicholson (1826-1891) was born in Sheffield, the son of Matthew Nicholson (1798-1840) and his wife, Maria née Clayton. Matthew was the brother of John (see J. Nicholson & Sons). In 1849, John Clayton was listed in a directory as a spring knife manufacturer at Pond Street. In the Census (1851), he was living with his wife, Mary, at Pond Street, employing ten men. By 1861, he had re-married (his wife was Margaret) and was living and working as a pen knife cutler at Ridgeway, Derb....