The brewery was founded by John Gray (1791-1826) and the Dacre family, which resided in West Ham for several generations until the 1860s (Francis Dacre was described on the 1841
census as a "brewer"). Gray received financial help from his father, Owen Gray, a brewer in
March, Cambridgeshire, in order to set up the business in West Ham. In 1822, following successful experiments to improve
fermentation, it was reported that the Gray and Dacre Brewery would be adopting a new fermentation system, using equipment provided by the copper merchants
James Shears and Sons. Gray subsequently visited France to observe fermentation techniques there. ==Later history==