Spencer Fullerton Baird (*1823-02-03—†1887-08-19)
Édouard Gérard Balbiani (*1823-07-31—†1899-07-26)
José Vicente Barbosa du Bocage (*1823-05-02—†1907-11-03)
Simon Baumann (*1823-10-18)
Julien Stephane Bazin (*1823—†1882-04-29)
Cristoforo Bellotti (*1823-07-31—†1919-05-24)
Carl Georg Hieronymus Eduard von Bodemeyer (*1823-02-02—†1889-10-05)
Carl Brunner von Wattenwyl (*1823-06-13—†1914-08-24)
Julius Victor Carus (*1823-07-25—†1903-03-10)
Hamlet Clark (*1823-03-30—†1867-06-10)
Paul Gustave Cluseret (*1823-06-13—†1900-08-22)
Jules Alexandre Josef Colbeau (*1823—†1881)
Alexander Collan (*1823—†1882)
Achille Costa (*1823-08-10—†1898-11-17)
David Carl Davidsen (*1823—†1895)
David Dyson (*1823-04—†1856-12-10)
Wilhelm Joseph Eichhoff (*1823-11-21—†1893-12-05)
Jean-Henri Fabre (*1823-12-21—†1915-10-11)
Pietro Mansueto Ferrari (*1823-07-28—†1893-06-15)
Adolphe Jean Focillon (*1823—†1890)
Joseph Gabillot (*1823—†1907)
Andrew Garrett (*1823)
Henri William de Graaf (*1823—†1911)
Christoph Johann Heinrich Gravenhorst (*1823—†1898-08-24)
Ignaz Vincenz Maria Gredler (*1823-09-30—†1912-05-04)
Robert Grentzenberg (*1823-05-20—†1886-11-12)
Hermann von Gwinner (*1823—†1851)
Paul Sigismund Habelmann (*1823-07-17—†1890-03-20)
Georg Albrecht Harrer (*1823)
Camill Heller (*1823-09-26—†1917)
John Braxton Hicks (*1823—†1897)
Thomas Wentworth Higginson (*1823)
Henry Youle Hind (*1823)
Otto Eduard August Hjelt (*1823)
James B. Hodgkinson (*1823-10-27—†1897-02-17)
Karl sen. Hupp (*1823-07-18—†1906-12-23)
Heinrich Hüttenbacher (*1823—†1902)
Auguste le Jolis (*1823-08-20—†1904-12-01)
Robert Lethbridge King (*1823-02—†1897-07-24)
Johannes Kinker (*1823—†1900)
Elizabeth Kirby (*1823—†1873)
Claude Ladrey (*1823)
Joseph Le Conte (*1823-02-26—†1901-07-06)
Joseph Leidy (*1823-09-09—†1891-04-30)
Michele Lessona (*1823-09-20—†1894-07-20)
Jean Nicolas Barthélémi Gustave Levrat (*1823-01-16—†1859-08-28)
Friedrich August Ludy (*1823—†1896-03-01)
Frederic MacCoy (*1823—†1899)
Robert Thomas Maitland (*1823—†1904)
Adrianus Hubertus (Adriën Hubert) Maurissen (*1823—†1892-07-15)
Frederick McCoy (*1823—†1899-05-13)
Franz Adolf Morsbach (*1823-11-23—†1903-03-03)
Hermann Sigismund Neumann (*1823—†1880)
Anatole Louis Wallerand Joseph de Madré de Norguet (*1823—†1898-09-15)
Edward Norton (*1823—†1894-04-08)
Georgiana Elizabeth Ormerod (*1823-12-23—†1896-08-19)
Christian Georg Frederik Pfaff (*1823—†1882)
Jules Emile Planchon (*1823-03-21—†1888-04-03)
Maurice Sand (*1823-06-30—†1889-09-04)
Oskar Schlömilch (*1823-04-13—†1901-02-07)
Eduard Oscar Schmidt (*1823-02-21—†1886-01-17)
Oskar Ed. Schmidt (*1823—†1886)
John Scott (*1823-09-21—†1888-08-30)
Eduard Seidensacher (*1823-01-05—†1867-10-26)
Otto Ernst Julius Seyffer (*1823-10-07)
Joseph Sidebotham (*1823—†1885-05-30)
Johann Carl Stern (*1823-04-24—†1886-04-23)
Adolf Streckfuß (*1823-05-10—†1895-10-11)
Adolfo Targioni Tozzetti (*1823-02-13—†1902-09-18)
C.M. Tullberg (*1823-09-08—†1906-12-06)
Max Wahnschaffe (*1823-05-10—†1884-10-06)
Alfred Russell Wallace (*1823-01-08—†1913-11-06)
Hans Daniel Johan Wallengren (*1823-06-08—†1894-10-25)
August Weger (*1823—†1892)
Tuffen West (*1823—†1891)
Ernst Fürchtegott Zschau (*1823-11-08—†1909-04-29)
Andrej Feodorovitsch Zubarev' (*1823-08-15)