Jesse Ramesden (1731-1800), was born in Salterhebble, Yorkshire. In 1756 he was apprenticed to Mark Burton a mathematical instrument maker in the Strand, London and initially worked for other makers such as Peter Dollond and George Adams. In 1766 he married Sarah Dollond, sister of Peter and, in 1768, set up his own business in Haymarket. He was an innovative maker and is credited with inventing a dividing engine for the accurate division of scales. He had several apprentices including William Cary, and he employed Matthew Berge who succeeded him on his retirement . He died shorly after retiring in 1800. This barometer is unusual at this date in incorporating ivory scales and the temperature compensation scale to allow for the expansion of mercury.