marks used on the "Made in England Mosaic" mosaic

Below is a list of the manufacturers marks used in the production of the Made in England Mosaic - by clicking on the names you can find details of the contributors, the factory, workers and ware , together with something of its importance in shaping the history of the pottery industry in Stoke-on-Trent, England.
Potters name (click for more) Location
Barker Bros Longton
Copeland & Garratt Stoke
Longton Hall Longton
Ridgways Shelton