I am indebted to local historian Fred Cooper for the press cuttings that follow, and to Shauna Gregg at the Sunderland Museum and Winter Gardens for the photos of pottery.
Baker suggests the pottery was built 'in 1836 by Captain Plowright of Lynn for the manufacture of brown ware'. The pottery was then owned by 'a group of workers from Dawson's Pottery who converted the works to the production of printed white ware', and operated between 1838 and 1841.
The first cutting is from the Newcastle Courant, November 6th, 1840. It advertises the sale of an earthenware manufactory with 'peculiar recommendations' to 'small capitalists especially'.
The list of effects confirms Baker's description above and includes 'four printing presses' and 'several copper plates, of new and approved patterns'.
In March 1849, there's a notice in the Newcastle Guardian offering the premises to let 'immediately', and Walker appears to have moved to Carr's Hill Pottery, near Gateshead.