Samuel Walker & Co, a silver plater in Burgess Street, registered a silver mark in 1836. The owner died in London on 17 November 1840, aged 44. In December 1840, Walker, Knowles & Co, Burgess Street, registered a silver mark (WK&Co) and also used an orb mark. The partners were John Knowles (born c.1812) in Sheffield and Henry Greaves Walker (c.1796-1878) in London, where the firm had an office at Beaufort Buildings in the Strand. Thomas Underdown was briefly a partner until 1841. In ....