1706-1790, natural philosopher; writer; revolutionary politican, American Franklin, Benjamin 1706 - 1790
1704-1782, active 1738-1777, science lecturer, philosophical, mathematical & optical instrument maker, Chichester, Sussex; London, England, British Martin, Benjamin 1705 - 1782
1708-1772, active 1731-1770, optician, optical instrument & microscope maker and seller, London, England, English Cuff, John 1708 - 1772