George St. Leger Grenfell was born in London in 1808. His father was a prominent businessman in banking and metal dealings in Holland and France. When he was in Paris in 1830 he joined the Royal Guard where he took part in fighting that led to downfall of the Bourbon monarchy. His father lost all his wealth and Grenfell had to leave France in 1837. He then entered the Crimean War where he was a Captain. After the Crimean War he went to South America and was involved in several revolutions. At outbreak of American Civil War he came to America and was introduced to Robert E. Lee. He joined the Confederacy. Lee sent him to John Hunt Morgan. Morgan made him his adjutant general. He was said to be " hard as steel and tough as leather and an excellent horseman". He rode with Morgan until 1863 when he joined Bragg's Army in Tennessee and then went to Virginia and rode with General JEB Stuart. After two more years of fighting he went North. Since he wasn't an American citizen he was interviewed by Stanton and allowed to live freely. He became involved with the Northwestern Conspiracy and was arrested. His court-martial took place in 1865 and caused much publicity and was written up in the "London Times". Grenfell was found guilty and sentenced to death. However after demands from the British Parliament, President Andrew Johnson commuted his sentence to life imprisonment. Grenfell was sent to Dry Tortugus where he met Dr. Mudd. When the epidemic of yellow fever broke out, he and Dr. Mudd worked ceaselessly to ease the suffering of others at the prison. The prison wrote President Johnson asking for his release. The President refused to pardon Grenfell. Grenfell decided to escape and on March 7, 1868 he and two companions rowed out into the storm from the prison and were never seen again.