Charlie Ball (left) and his son (second left) from the millwright firm of Christy and Norris are making a new stock and sails in the grounds of the Mill. On the right is Fell Christy (aged 25), the son of the owner of Christy and Norris, in his first year with the firm after attending university. The fourth person is unidentified.
Charlie Ball, seen here on the fantail stage of the Upminster mill, was the site foreman for the millwright firm of Christy and Norris, Chelmsford. They carried out work on the Upminster mill on several occasions. Christy and Norris was founded by Fell Christy in 1858