John E Cooper appears to have been a prominent member of the Sheffield Cutlery industry. John Ernest Cooper (1883-1957) was the son of John (Silversmiths Toolmaker) and Florence Cooper, John Ernest was also employed as a toolmaker and by 1911 living at 3 Keyworth Road. John Ernest later established a business with George Rogerson ie (Rogerson & Cooper) which became John Cooper & Son, located at Garden Street.John was a member of the Sheffield Master Silversmith's Association, the minutes of a meeting ....