Dawson, George Mercer Dates of birth and death: 1849 Pictou, Nova Scotia - 1901
Also known as: G. M. D. ; George M. Dawson ;Worked for: G. M. Dawson: Fossil Plants of Devonian Upper Silurian Formations Canada (1871) ;
Dax, Paul Dates of birth and death: 1503 in Sterzing, Tirol - 1561
Also known as: P. D. ; Dax the Elder ;Worked for: mine maps in Holztratten, Vorphül, Witta, Reinaken, Kitzbühel (1541) ; Röhrenbühl mine (1543) ;
Day, John Dates of birth and death: 1824 in London - 1888
Also known as: J. D. ;Worked for: Heinrich Gustav Reichenbach, orchid taxonomist at the Univ. of Hamburg ;
Day, William Dates of birth and death: 1797 - 1845
Also known as: W. D ; William Day the Elder / Sen. ;Worked for: Jane Wells Loudon, née Webb ; Edward James Ravenscroft ; Elizabeth Twining; med. Robert Carswell: Path Anat. 1833-138 ;
Day, Francis Talbot Dates of birth and death: 1829 in in Maresfield, Sussex - 1889
Also known as: F. T. D. ; Worked for: Fishes of Cochin on the Malabar coast of India, Proc. of the Zoological Society of London, Jan. 18, 1865 & March 14, 1865 & 1871:761-766; sep. publ. as: The Fishes of Malabar, 1865; The fishes of India : being a natural history of the fishes known to inhabit the seas of India, Burma, Ceylon 1878; British and Irish Salmonidae (London & Edinburgh 1887) ; The fishes of Great Britain and Ireland (London & Edinburgh 1880-84) ;
Day, William Dates of birth and death: 1824 ca. -
Also known as: William Day the Younger ; William Day Jr.; Worked for: Henri Milne Edwards (1800-85) & Jules Haime: British Coral Fossils 1850-4 ;
de Almeida e Silva, Carlos Dates of birth and death: 1905 fl. - 1910 fl.
Also known as: C. d. A. e S. ; Worked for: Oswaldo Gonçalves Cruz (1872-1917) ;
de Alwis Seneviratna, Harmanis Dates of birth and death: 1792 in Kalutara, Sri Lanka - 1894
Also known as: H. d. A. S. ; H. de Alwis ; Worked for: British officer and naturalist Robert Wight (1796-1872) ; British officer and naturalist George Gardener (1812-1849) ; British officer and naturalist G. H. K. Thwaites (1812-1882) ; botanist Werner Hoffmeister ; Botanical Garden in Ceylon at Kalutara between 1818-1822 ; Botanical Garden in Peradeniya from 1822-1861 ;
