William Smith (geologist)
Smith put together the historical geology of Britain (England and Wales) and southern Scotland into a single record. At the time his map was published he was almost unknown to the scientific community. His humble family and education meant he did not mix easily in learned society. His work was plagiarised, he was financially ruined, and he spent time in debtors' prison. It was only later in his life that Smith got recognition for what he had done.