Joaquim dos Santos e Silva 1841–1906 Source: Wikimedia Commons About Joaquim dos Santos e Silva Portuguese chemist and toxicologist (1842-1906) People from the Same Era Mary Elizabeth Wieting Johnson 1843–1947 philanthropist Royal Macintosh Pulsifer 1843–1888 newspaper proprietor Newton Rasmus Anton Holm 1836–1899 attending physician, physician, psychiatrist Svaneke Emory James Haynes 1847–1914 writer Cabot Giuseppe Conti 1847–1924 historian, librarian Florence Guillermo Cervantes 1850–1933 military personnel, revolutionary Peru