1709/10-1783, Pinchbeck the younger, clock-maker; watchmaker, British Pinchbeck, Christopher 1709 - 1783
1715 or 1716-1794, horologist; marine escapement and watchmaker, London, England, English Mudge, Thomas 1715 - 1794
1711-1788, active 1748-1776, optician, Edinburgh & London, Scottish; British Short, Thomas 1711 - 1788
1706-1790, natural philosopher; writer; revolutionary politican, American Franklin, Benjamin 1706 - 1790