1806-1885, lithographer; watercolour painter, active London from 1823, Belgian Haghe, Louis 1806 - 1885
1806-1885, chemist and promoter of the telegraph, English; British; Australian? Davy, Edward 1806 - 1885
active 1830-1867, optical instrument maker (astronomical & geodetical), German Repsold, Adolf 1806 - 1871
active 1834-1851, optician, magnetician, mathematical instrument maker; philosophical instrument maker; engineer, Irish Clarke, Edward Marmaduke 1806 - 1859
1921-?, family planning, health and marital advice clinic, London, England, British The Mother's Clinics of the Society and Clinic for Constructive Birth Control and Racial Progress 1800
b. 1806, wrote a mathematical ms from 1816-1817 based on a course of lectures, British? Booth, William Beattie 1806