This razor manufacturer apparently involved three generations of Roberts’ family members: all named Joseph. The enterprise’s first appearance was in the Sheffield directory of 1787, as Joseph Roberts & Co, razor maker, at Garden Street (trade mark ‘AMSTERDAM’). The senior partner, Joseph Roberts, was a cutler, who may have been born in 1738 and had married Lydia Sparrow. Their son, Joseph Roberts (1767-1829), became a cutler (probably after apprenticeship to his father). ....