Alcade, M. Dates of birth and death: 1854 fl. -
Also known as: M. A. ;Worked for: Vincente Martin de Argenta, Album de la flora, médico-farmacéutica é industrial ... vol. 1 (Madrid: Imprenta de la Galeria Literaria, 1862: plate 86) & vol. 3 (Madrid: Imprenta de la Galeria Literaria, 1864: plates 227 & 295) ;
Aldéguier, Auguste Dates of birth and death: 1795 fl. - 1801 fl.
Also known as: A. A. ; d'Aldéguier ;Worked for: Philippe Picot de Lapeyrousse (1744-1818) ;
Alder, Joshua Dates of birth and death: 1792 - 1867
Also known as: J. A. ; Worked for: published with W. Robertson & Albany Hancock & Robert Winthrop Chanler: A monograph of the British nudibranchiate Mollusca (1845) ;
Aldin, Cecil Charles Windsor Dates of birth and death: 1870 in Slough, Buckinghamshire - 1935
Also known as: C. C. W. A. ; Cecil Aldin ; Worked for: Rudyard Kipling: Jungle Book ; Duncan Fife: Scarlet, Blue and Green ; Neils Heiberg: White-ear and Peter. The story of a fox and a fox-terrier (1912) ; Maurice Maeterlinck: My dog (1913) ;
Aldous, W. Lens Dates of birth and death: 1840 fl. - 1880 fl.
Also known as: W. L. A. ; W. Aldous ;Worked for: Entomological Society of London; Sir Richard Owen (1804-1892): History of British Fossil Reptiles ;
Aldrovandi, Ulisse Dates of birth and death: 1522 in Bologna, Italy - 1605
Also known as: U. A. ; Ulysses Aldrovandus ; Worked for: U. A.: De reliquis animalibus exanguibuis libri quatuor (posthumously published 1606) ; De Animalibus Insectis (1662) ; Musaeum metallicum (1648) ; editor Bartolomaeus Ambrosinus ; editor Marcus Antonius Bernia ;
Alegre, Emm. Dates of birth and death: 1768 - 1794 fl.
Also known as: E. A. ; Manuel ? ;Worked for: Hipólito Ruiz Lopez (1754-1815/16) ; José Antonio Pavón y Jiménez (1754-1844) ;