Paul Roget

Peter Mark Roget FRS (UKˈrɒʒeɪ or USroʊˈʒeɪ; 18 January 1779 – 12 September 1869) was a British physician, natural theologian and lexicographer. He is best known for publishing, in 1852, the Thesaurus of English Words and Phrases (Rogets Thesaurus), a classified collection of related words.

Bio from Wikipedia - See more on en.wikipedia.org Text under CC-BY-SA license