In the 1881 census he was living with his parents, Thomas and Sarah, in Lisburn Street - but in the mid-1880s he took over a business established by Jonathan Cockburn in Howick Street.
The Bailiffgate Museum website contains an interesting page on the premises at 5 Howick Street, part of its "If These Stones Could Talk" project:
Charles continued to run his business from Howick Street until his death in 1905, aged 49. The Morpeth Herald published the following report on 16 December 1905:
The Bailiffgate Museum article shows that Charles' wife Elizabeth continued to live in Howick Street and that two of their sons were killed in 1918 in the First World War. Thomas Nettleship served in the Northumberland Fusiliers and was killed on 22 March 1918. His brother Mark Nettleship served in the King's Own Scottish Borderers and died on 1 September 1918, aged 25. Both are remembered on the Alnwick War Memorial.
Charles' father Thomas Nettleship was born in Mattersey, Nottinghamshire. Looking at the 1881 census data using Surname Atlas it can be seen that this is an area where the Nettleship name was most commonly found. There is a reference to an Edward Nettleship endowing the Mattersley National School in 1742.
Source: Surname Atlas (Archer Software)