 By the time of the elder Joseph Terry 's death in 1850 , Terry 's was becoming a household name due to its previous trade successes across the country . The younger Joseph , along with his two brothers , Robert and John , are credited with moving confectionery production to an industrial scale with the leasing of a factory at Clementhorpe , beside the River Ouse , in 1862 . Its location was particularly advantageous , as the 22 @-@ year @-@ old Terry had drawn inspiration from the manipulation of the railways initiated by his father , and saw the benefit of importing and exporting from the river using steamboats . Vessels from the River Humber supplied coal for the factory , while larger ships would import ingredients such as sugar and cocoa from around the world twice a week . The Clementhorpe factory also improved the logistics of the company , providing ample room for the construction of warehouses to store stock . Two years later , there were 400 separate items in the firm 's price list , with around 13 of them consisting of chocolate as a main ingredient ; others included various candied peels , cakes , biscuits and jams among other more exotic products such as cream balls . 
