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English author, poet, and mathematician Charles Lutwidge Dodgson (1832–1898) is better known by his pen name: Lewis Carroll

Photographic self-portrait, taken June 2, 1857, around the time that Carroll drafted the stories that made him famous. This photograph was first published in Carroll's biography by his nephew, Stuart Dodgson Collingwood. (Source: Collingwood, 1898. Public domain.)