John Harrison References John Harrison British potter Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of EncyclopƦdia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: pottery/ The United StatesJohn Harrison of Copelandās was hired by Norton and Fenton and brought with him a number of molds. An ironstone china called graniteware, or white granite, was also made. Read MoreJohn Harrison of Copelandās was hired by Norton and Fenton and brought with him a number of molds. An ironstone china called graniteware, or white granite, was also made. Read More