JMS Pearce East Yorks, UK   Fig 1. Peter Mark Roget (1779-1869). William. Drummond, after Eden Upton Eddis. c.1830s. Credit National Portrait Gallery  There was much more to Peter Mark Roget (1779–1869)(Fig 1) than his indispensable Thesaurus of English Words and Phrases (Fig 2).1 But little is remembered of his illustrious career in medicine and…