George James Finch-Hatton was a British peer and Tory politician
Franz Martin Hilgendorf was a German zoologist and palaeontologist. Hilgendorf's research on fossil snails from the Steinheim crater in the early 1860s became a palaeontological evidence for the theory of evolution published by Charles Darwin in 1859. Darwin acknowledged the findings of Hilgendorf and referred to his research in the sixth edition of On the Origin of Species, 1872.
Diplomat and colonial administrator
Sir William Jackson Hooker was an English botanist and botanical illustrator, who became the first director of Kew when in 1841 it was recommended to be placed under state ownership as a botanic garden. At Kew he founded the Herbarium and enlarged the gardens and arboretum. His son, Joseph Dalton Hooker, succeeded him as Director of Kew Gardens
Biologist
Sir Henry Hamilton Johnston was a British explorer, botanist, artist, colonial administrator and linguist who travelled widely in Africa. He published 40 books on African subjects and was one of key players in the Scramble for Africa that occurred at the end of the 19th century