David Bridson's brief booklet The Life of Joseph Williamson (Liverpool: The Joseph Williamson Society (2011)) gives a potted biography of a little of what is known of Joseph Williamson (1769–1840), including a number of updates. Williamson was born in Yorkshire and at the age of eleven or twelve moved to Liverpool to work for and lodge with tobacco manufacturer Mr Tate (no forename given), whom his family had probably known.
The image above is an artwork inspired by the work carried out by Williamson's workers.
For an off-centre view of Liverpool, away from the usual attractions, the Williamson Tunnels are a must. I like this Guardian article, the title of which suggests a healthy 'Bollocks to Alton Towers' attitude:
Emma Kennedy: 'Forget the Cavern'