This is Thomas Addison, as he will have looked in 1852 when his colleague at Guy's Hospital, Joseph Towne, made this marble bust.
Thomas Addison, together with Richard Bright, began to write a series of medical books. The first was submitted to the medical press. It was too avante-garde; too innovative. Bright and Addison were humiliated. Bright recovered. Addison spent over twenty years out of the public eye - only emerging to teach the Guy's hospital students.
Then, in 1849, he delivered a lecture on the link between anæmia and the "Suprarenal Capsules" followed by a book in 1855. Suddenly he was famous.
It's all available for reading - or for downloading to a local disk from