John Robertson, Newcastle silversmith. After his initial partnership with John Langlands 1778-1795, John Robertson I and David Darling created a short but productive partnership ending 15 months later. John Robertson worked on his own until his death in 1801. His widow, Ann continued the business in her own name until she retired in 1811, with the business transferring to her nephew John Robertson II. The business was divided into retail and manufacturing, with the manufacturing section run in joint names of John Robertson II and John Walton. Walton withdrew from the firm at the end of 1820 and Robertson II went bankrupt.