Title: André Guillaumin
Content:  André Louis Joseph Edmond Armand Guillaumin (21 June 1885 in Arrou &ndash; 29 May 1974 in Athis-Mons) was a French botanist. He obtained his license in biology in 1906 and began work in the Muséum national d'histoire naturelle in Paris in 1909 as a preparer. He obtained a doctorate in biological science in 1910 and became assistant to the chair of botany and plant physiology. In 1932 he succeeded Désiré Georges Jean Marie Bois (1856-1946) as head of the department of horticulture at the museum. He became the deputy director of the museum from 1947 to 1950, retiring in 1956. His 
Title: 1776 in science
Content: February 4 – Gottfried Reinhold Treviranus, German naturalist (died 1837) ; February 14 – Christian Gottfried Daniel Nees von Esenbeck, German botanist (died 1858) ; March 27 – Charles-François Brisseau de Mirbel, French botanist and politician (died 1854) ; April 1 – Sophie Germain, French mathematician (died 1831) ; May 17 – Amos Eaton, American naturalist and pioneer of science education (died 1842) ; June 1 – Giuseppe Zamboni, Italian Catholic priest and physicist (died 1846) ; June 12 – Karl Friedrich Burdach, German physiologist (died 1847) ; July 16 ; Ludwig Heinrich Bojanus, German physician and naturalist (died 1827) ; Johann Georg von Soldner, German physicist (died 
Title: Guillaume-Antoine Olivier
Content:  Guillaume-Antoine Olivier (19 January 1756, Les Arcs near Toulon &ndash; 1 October 1814, Lyon) was a French entomologist and naturalist.
Title: Franz Kiggelaer
Content:  François, Franciscus, or Frans Kiggelaer (baptized 4 December 1648, Haarlem – buried 22 December 1722, The Hague) was a Dutch botanist, apothecary and curator of the garden of Simon van Beaumont in Leiden. In 1690 he published a plant catalogue of this garden under the title "Horti Beaumontiani: Exoticarum Plantarum Catalogus ...". He collaborated with Frederik Ruysch on the first volume of Jan Commelijn's "Horti Medici Amstelodamensis Rariorum" which appeared in 1697 and dealt mainly with plants from the East and West Indies. This was an illustrated account, with text in Dutch and Latin, of the plants growing in van Beaumont's garden. Watercolours of 420 plants were prepared during the period 1686–1709 by a number of artists, mainly Johan and Maria Moninckx, with minor contributions from Helena Herolt and Alida Withoos. Carl Linnaeus named the genus Kiggelaria, belonging to Achariaceae, in his honour.
Title: Henri Guillaume Galeotti
Content:  Henri Guillaume Galeotti (10 September 1814 – 1858) was a French-Belgian botanist and geologist of Italian parentage born in Paris. He specialized in the study of the family Cactaceae. He studied geology and natural history at the Etablissement Géographique de Bruxelles, where he graduated in 1835 with an award-winning dissertation on the geology of Brabant. After graduation, he spent the next five years in Mexico performing geological and botanical research. Here he collected numerous new species of plants, particularly cacti. In 1840 Galeotti was offered a position teaching botany at the University of Brussels, but turned down the offer, preferring to work at his nursery outside of Brussels, from where he imported Mexican flora for sell in Europe. During this time period, he collaborated 
Title: Jaques Étienne Gay
Content:   Jaques Étienne Gay (1786 in Switzerland – 1864) was a Swiss-French botanist, civil servant, collector and taxonomist. His name is associated with plants in standardised botanical nomenclature, e.g. Crocus sieberi J.Gay. He was the most famous of the students of botanist Jean François Aimée Gaudin with whom he began collecting plants at the age of 14. He was married to Rosalie Nillion. The botanical genus Gaya was named in his honour, as well as the genus Neogaya belonging to the family Apiaceae. Also the species Potamogeton gayi A.Benn. in 1892.
Title: March 26
Content: 1516 &ndash; Conrad Gessner, Swiss botanist and zoologist (d. 1565) ; 1554 &ndash; Charles of Lorraine, duke of Mayenne (d. 1611) ; 1584 &ndash; John II, duke of Zweibrücken (d. 1635) 
Title: 1886 in science
Content: February 25 – Lady Katherine Sophia Kane, Irish botanist (born 1811) ; March 15 – Anastasie Fătu, Moldavian and Romanian physician and naturalist (born 1816) ; July 1 – Otto Wilhelm Hermann von Abich, German mineralogist and geologist (born 1806) ; August 17 – Aleksandr Butlerov, Russian chemist (born 1828) ; November 14 – Alexandre-Emile Béguyer de Chancourtois, French mineralogist and geologist (born 1820). ; November 25 – Richard Maack, Russian naturalist, geographer, and anthropologist (born 1825) ; September 18 – Sampson Gamgee, English surgeon (born 1828). ; December 26 – Theodor von Oppolzer, Austrian astronomer (born 1841) 
Title: Henri Gaussen
Content:  Marcel-Henri Gaussen (14 July 1891 in Cabrières-d'Aigues (Vaucluse) - 27 July 1981 in Toulouse), was a French botanist and biogeographer. In 1926, he defended his thesis on "the vegetation of the eastern half of the Pyrenees", which laid the foundation for future work on the border between biogeography and vegetation mapping. Gaussen was an early advocate of the ideas of stages and vegetation succession, which are fundamental to phytogeography. His work allowed for the production of a vegetation map of France at a scale of 1/200 000 (completed after his death by the service of the CNRS, but which he had created and directed) and many similar projects in other countries. His work led to many advanced phytogeographic tools such as the xerothermic or Gaussen Index, and the "ombrothermic diagram". As recognition for his scientific work in 
Title: 1686 in science
Content: February 10 – Jan Frederik Gronovius, Dutch botanist (died 1762) ; May 24 – Gabriel Fahrenheit, physicist and inventor (died 1736) ; July 6 – Antoine de Jussieu, French naturalist (died 1758) ; October (possible date) – John Machin, English mathematician (died 1751) 

Question: Verify the following claims with "True" or "False": Guillaume Geefs, whose professional field was Botany, died on the 18th of February 1776.
Answer: False