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of Grosvenor Works, Gregory Street, Longton, Stoke-on-Trent, Staffordshire. (1922)
Ditto Address. Telephone: 3166 Longton. Cables: "Grosvenor, Longton". (1929)
c.1866 Pottery established at the Grosvenor Works in King Street, Fenton, succeeding Jackson and Brown (c.1864).
1909 Moved to the Grosvenor Works, Gregory Street, Longton.
1920s The business was acquired by Mr. A. E. Hewitt and Mr. Harold J. Plant
1922 Listed Exhibitor - British Industries Fair. Manufacturers of china Tea, Breakfast, and Coffee Sets, and a large range of useful domestic articles in high-class decorations. (Stand No. G.47) 
1928 The firm became a limited liability company, although "Ltd" was not always added to marks. The trade name 'Grosvenor China' was widely used.
1929 Listed Exhibitor - British Industries Fair. Manufacturers of Bone China, Tea and Breakfast Services, Fancy Goods in best China, Hotel and Restaurant Ware, Mounting Ware. (Stand No. G.11) 
1931 Jackson and Gosling was acquired by W. T. Copeland and Sons; the standard mark then sometimes included: Copeland's Grosvenor China England. A. E. Hewitt joined Ronald and Gresham Copeland as directors of the enlarged Copeland business.
1947 Advert in British Industries Fair Catalogue as Exhibiting Member of the British Pottery Manufacturers' Federation of Federation House, Stoke-on-Trent, Staffordshire. Composite Exhibit. (Pottery and Glassware Section - Olympia, Ground Floor, Stand No. A.1213) 
1950 W. T. Copeland and Sons Ltd sold Jackson and Gosling Ltd to Mr. Donald Poole, formerly the production manager and a director of Thomas Poole and Gladstone China Ltd.
1953 The Grosvenor Works was sold to Shelleys; the factory demolished in the following year.
1957 The Jackson and Gosling business and Grosvenor China trade name were acquired by the New Chelsea China Co. Ltd (owner possibly Susie Cooper and/or the Plant family).
1961 a newly-formed company Grosvenor China Ltd acquired the Jackson and Gosling Ltd business and took over the New Chelsea China Co's Chelson St. Works.