Commemorated on 3 plaques
The Williamson Tunnels. Joseph Williamson 1769-1840 Pioneer of Tunnels
The Williamson Tunnels, Smithdown Lane, Liverpool, United Kingdom where they tunnelled
The Williamson Tunnels. Joseph Williamson 1769-1840 Pioneer of Tunnels
The Williamson Tunnels Heritage Centre, Smithdown Lane, Liverpool, United Kingdom where they tunnelled
40-44 Mason Street, Edge Hill, L7 3EW. The former home of Joseph Williamson (1769-1840) "The Mole of Edge Hill"
opposite 39 Mason Street, Liverpool, United Kingdom where they lived