Charles Williamson was listed as a table knife manufacturer in Radford Street in 1833 (then in 1837 in Kenyon Alley, where he also made razors).  By the end of the 1840s, he was in Charlotte Street.  In the Census (1851), he was a 42 year-old table knife manufacturer in Charlotte Street, employing 40 men.  By 1861, he was living on the Ecclesall Road, with a works address in Sydney Street.  He had 16 workmen.  Charles had several sons by his wife Frances, including Charles, Frederick, Walter, Albert, and Samuel, who all appear to have started work in the warehouse.  In 1871, Williamson’s workforce, as recorded in the Census, was a hundred.  Charles Williamson, aged 67, was buried on 15 November 1875 in St Thomas’ churchyard, Crookes (Frances had been buried on 5 December 1871, aged 63).  His sons launched a series of enterprises, including Williamson Bros;  S. & C. Williamson; and Charles Williamson & Sons.  They were bankrupt by 1877 (The London Gazette, 16 October 1877).