Home / Scientists and Inventors / James Marsh James Marsh 1794 – 1846 Scientists and Inventors Scientists and Inventors Biography James Marsh (1794–1846) was a British chemist who invented the Marsh test for detecting arsenic. Born September 1, 1794 in Woolwich. Died June 21, 1846 in Woolwich. AD ✝ LEGENDS AT REST Every legend has a story. Every story has a resting place. Explore the Legends at Rest books and profiles. Explore Legends at Rest → More Images Related Graves More scientists and inventors → Louis Renault 1877 – 1944 Herqueville, Eure, France Athletes Conrad Dietrich Magirus 1824 – 1895 Business Magnates John Ruggles 1789 – 1874 Elm Grove Cemetery, Thomaston, United States Politicians Giovanni Branca 1571 – 1645 Scientists and Inventors