1639-d.1713, horologist; clock-maker; barometer maker and scientific instrument maker, England, English Thomas Tompion 1639 - 1713
1673-1751, active 1688-1751 horologist; scientific instrument maker, watchmaker, London, England George Graham 1673 - 1751
1824-1890, marine chronometer, escapement and watchmaker; horologist, Swedish Victor Kullberg 1824 - 1890
1715 or 1716-1794, horologist; marine escapement and watchmaker, London, England, English Thomas Mudge 1715 - 1794
1816-1905, architect; horologist; inventor; lawyer, 1st Baron Grimthorpe, British Edmund Beckett Grimthorpe 1816 - 1905