Tony,
Here are a couple of good sites. You should find what you need.
Good luck,
Bill
John Maddock & Sons Origin: Burslem, Staffordshire Date: 1855-present Formerly: John Maddock Factory: Newcastle Street, Dale Hall Type: Transferprint
(NOTE: any mark with 'Maddocks' (note the 's' at the end) is an American company
and not Maddock & Sons of Burslem, England)