William  Fox
second cousin to Darwin, studied to become clergyman at Cambridge, shared interests with and tutored Darwin in natural history

Joseph Dalton Hooker
botanist and assistant director of Royal Botanic Gardens, friend and confidant to Darwin

Robert Waring  
Darwin’s father, Shrewsbury-based physician

Susan  
Darwin’s sister

Emily Catherine  
Darwin’s sister

Caroline  
Darwin’s sister

John Stevens Henslow
teacher and friend to Darwin, clergyman, botanist, Professor of Mineralogy at University of Cambridge, founded Cambridge University Botanic Garden

Charles Lyell
influential geologist, friend and mentor to Darwin

Emma Wedgwood
Darwin’s wife

William Erasmus  
Darwin’s oldest child

Thomas Henry Huxley
biologist, advocate of Darwin’s theory of evolution, defended evolution in 1860 debate against Bishop Samuel Wilberforce

Asa Gray
American botanist, influential in plant taxonomy, provided information to DARWIN to help develop evolution theory

Alfred Russel Wallace
naturalist, father of biogeography, leading evolutionary thinker, proposed his own theory of evolution, Wallace’s observations helped support DARWIN’s theory

Henry Walter Bates
naturalist, explorer, supported theory of evolution, famously explored Amazon with Alfred Russel Wallace and collected thousands of new specimens

Charles Kingsley
novelist, supporter of evolution and Darwin

Benjamin Dann Walsh
entomologist, Darwin supporter, Darwin refers to Walsh’s work in On the Origin of Species

Ernst Haeckel
German biologist, discovered and named thousands of new species, DARWIN supporter

Robert FitzRoy
captain of HMS Beagle, pioneering meteorologist, not a supporter of evolution, denounced On the Origin of Species