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of Trebor Works, Katherine Road, London, E7. Telephone: Grangwood 0172 (4 lines). Cables: "Treborchoc, London"
1907 The company was founded when William Baglin Woodcock (a sugar boiler), Robert Robertson (a grocer), Sydney Herbert Marks (a salesman) and Thomas Henry King (a grocer) each invested £100 in a partnership to manufacture and market high quality boiled sweets. They were hand made by craftsman and soon became highly popular.
The company started in Shaftsbury Road, Forest Gate, at the junction with Katherine Road. The first sugar boiling was carried out behind the house in Trebor Terrace, which was named by the original builder Robert Cooper, who in 1894 reversed the letters of his first name to make the name 'Trebor'.
The sweets were originally made under the brand name 'Boleyn' but later changed to 'Trebor' after the house name.
Trebor Terrace still exists at the same location and the original factory is now luxury apartments.
1937 A larger factory was built in Forest Gate, to enable the company to keep up with demand. Trebor Extra Strong Mints were launched.
1939 Announce they will build a factory in Chesterfield on a five-acre site. Makers of Trebor and Boleyn pure sweets. 30-40 people will be employed initially increasing later to 300..
1947 Listed Exhibitor - British Industries Fair. Manufacturers of Confectionery: "Trebor" Quality Sweets, Toffees, Caramels, Barley sugars, Crystal Mints, Hard and Fruit Centred Boiled Sweets, "Trebor" Extra Strong Peppermints, "Trebor" Peerless Peppermints, Count Lines, Sole Agents "Manler" Christmas Crackers. (Earls Court, 1st Floor, Stand No. 581) 
1950 Robertson and Woodcock, Brimington Road, Chesterfield, manufacturing confectioners.
1960 Robertson and Woodcock Limited, Trebor Works, Woodford Green, Essex.
1961 Acquired Edward Sharp and Sons
1962 Robertson and Woodcock Ltd., Trebor Works, Katherine Road, Forest Gate, London.
1968 Became Trebor Sharps
1969 Acquired Clarnico
1986 Acquired Maynards
1889 Became part of the Cadbury Trebor Bassett Group