1a. Asa Gray (1810--1888). Considered the most important American botanist of the 19th century. He was instrumental in unifying the taxonomic knowledge of the plants of North America. Gray, Hooker and Darwin were lifelong friends and colleagues. Hooker and Gray conducted research for Darwin.
1. Thomas Henry Huxley (1825--1895). English biologist (comparative anatomist).  His vigorous public support for Charles Darwin's evolutionary naturalism earned him the nickname "Darwin's Bulldog." His organisational efforts, public lectures and writing helped elevate the place of science in modern society
2. Daniel Oliver (1830-1916). Botanist. He made botanical studies in northern Britain and in Ireland, becoming a fellow of the Edinburgh Botanical Society In 1851 and of the Linnaean Society in 1853. In 1858 at the invitation of Sir William Hooker he began work as an assistant in the Herbarium. In 1859, he initiated lectures in Botany for Kew's trainee gardeners which led to his appointment as Professor of Botany at University College London in 1861, a post he held until 1888. From 1864 to 1890 he was also Keeper of the Herbarium and Library at Kew. He was elected member of the Royal Society in 1863 and published a number of works including Lessons in Elementary Botany,1864 and Flora of Tropical Africa 1868--1877. From 1890 until 1895 he held the editorship of Icones Plantarum.
3. George Bentham, (1800--1884). Nephew and heir to Jeremy Bentham for whom he also acted a secretary. After his uncle's death he devoted himself to botany, especially plant classification. At the invitation of Sir William Hooker he began work at Kew where he remained for 27 years He collaborated with Joseph Hooker on the Genera Plantarum (3 vols 1862--1883) an influential work on plant taxonomy which is the foundation of many modern systems of classification. He donated his herbarium of more than 100,000 specimens to Kew. His Handbook of British Flora remained a standard work into the 20th century.
4. Sir Mountstuart Elphinstone Grant Duff (1829--1906). Scottish politician, author and administrator. He served as the Parliamentary Under Secretary of State for India from 1868 to 1874, Under Secretary of State for the Colonies from 1880 to 1881 and the Governor of Madras from 1881 to 1886. During the last appointment he took great interest in the gardens of Government Houses in Madras [Chennai] & Ootacamund [Udagamandalam]. Letters from Grant Duff to RBG Kew can be found in our online collection of Directors’ Correspondence hosted at http://plants.jstor.org/
5. William Carruthers (1830--1922). Assistant in and then Keeper of the Department of Botany at the British Museum from 1859 until his retirement in 1895. His tenure of office was marked by a great development of the department. The removal of the natural history collections to the new Natural History Museum in the Cromwell Road in 1881 afforded a unique opportunity for improvement and expansion.
6. William Henslow Hooker (1853--1942). Eldest child of Joseph and Frances Hooker; Willy was sent to New Zealand for his health and lived with James and Georgiana Hector 1869--70; employed by India Office 1877; visited Iceland 1899; married Sarah Ann Smith (1863--1952) in 1914.
7. Harriet Anne Thiselton-Dyer née Hooker (1854--1945). Oldest child of Joseph Hooker and his first wife Frances Henslow. Harriet was a Botanical illustrator and wife of William Turner Thiselton--Dyer. Her husband was Assistant Director of RBG Kew (1875--1885) and later Director (1885--1905), succeeding her father.
8. Sir William Turner Thiselton-Dyer (1843--1928). British botanist and third Director of the Royal Botanic Gardens, Kew (1885--1905).  He succeeded Joseph Hooker in the role after serving as his Assistant Director for ten years. He previously held professorships at the Royal Agricultural College, Cirencester, Royal College of Science for Ireland and the Royal Horticultural Society.  He married Hooker's eldest daughter Harriet in 1877.
8a. An English edition of Decaisne and Le Maout's work: Traité Général de Botanique Descriptive et Analytique (1868), was published by Longmans Green & Co., London in 1873, under the title A General System of Botany Descriptive and Analytical. The translation from the original French was done by Joseph Hooker's wife Frances Harriet Hooker.
8b. 'Silliman' or 'Silliman's Journal' was a name often used to refer to the American Journal of Science, founded in 1818 by Benjamin Silliman. It is the longest running scientific journal in the United States of America and its focus has always been on the natural sciences. Silliman was the first editor, succeeded by his son in law James Dwight Dana and then his son Edward Salisbury Dana. Associate editors included botanist Asa Gray and zoologist Louis Agassiz.
9. The former name of the Victoria and Albert Museum.

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