Jean-Baptiste Dumas
14 July 1800 — 2 April 1884
Jean Baptiste André Dumas was a French chemist, best known for his works on organic analysis and synthesis, as well as the determination of atomic weights and molecular weights by measuring vapor densities. He also developed a method for the analysis of nitrogen in compounds.
A memorial on Digital Cemetery, an endless map you can explore. This grave stands at coordinates -78, 52.