1807-1868, active 1837-1868, optician, optical instrument maker (telescopes), English; British Cooke, Thomas 1807 - 1868
1807-1873, active 1840-1845, optician; daguerreotypist; optical instrument maker, French Lerebours, Nöel Marie Paymal 1807 - 1873
1807-1873, naturalist; biologist; palaeontologist; glaciologist; geologist, Swiss-born; American Agassiz, Louis 1807 - 1873
1807-1871, physician; medical pioneer, French-trained, active Venezuela, French; Venezuelan Beauperthuy, Louis Daniel 1807 - 1871
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