Partner in Hay, Merricks & Co., owners of the Roslin Gunpowder Works, founded in 1804 by Charles Hay and John Merricks and carried on by their sons Charles Crossland Hay (1797-1858) and James Merricks (1808-1859) together with John’s nephews, John Merricks and Hezekiah Merricks, and subsequently by Hezekiah’s sons. The gunpowder mills closed in 1954.
