Vocation : Science : Chemistry

Pierre Potier (22 August 1934 – 3 February 2006) was a French pharmacist as well as a chemist. He held the position of Director of the Institut de Chimie des Substances Naturelles (1974 to 2000), as well as a teaching position at the Muséum national d'histoire naturelle. He was a member of the Académie nationale de pharmacie, the Académie des sciences, the Académie des technologies and the Academia Europaea.

Ernest Gaston Joseph Solvay (French: [sɔlvɛ]; 16 April 1838 – 26 May 1922) was a Belgian chemist, industrialist and philanthropist.

Friedrich Carl Duisberg (29 September 1861 – 19 March 1935) was a German chemist and industrialist.

Friedrich Bayer (born Friedrich Beyer, 6 June 1825 in Barmen now Wuppertal – 6 May 1880 in Würzburg) was the founder of what would become Bayer, a German chemical and pharmaceutical company. He founded the dyestuff factory Friedrich Bayer along with Johann Friedrich Weskott in 1863 in Elberfeld, a flourishing city in the early industrialised region of the Wuppertal or Wupper Valley.

Friedrich Bayer changed the spelling of his surname from Beyer in his early twenties, due to the publicity gained by a fraudulent merchant from Leipzig bearing the same name. Friedrich Beyer from Barmen feared that the bad reputation of his namesake could damage his business and consequently changed his surname to Bayer.

Paul Adriaan Jan, Baron Janssen (12 September 1926 – 11 November 2003) was a Belgian physician. He was the founder of Janssen Pharmaceutica, a pharmaceutical company with over 20,000 employees which is now a subsidiary of Johnson & Johnson.

Donald Frederick Hornig (March 17, 1920 – January 21, 2013) was an American chemist, explosives expert, teacher and presidential science advisor. He served as president of Brown University from 1970 to 1976.

Leo Brewer (13 June 1919, St. Louis, Missouri – 22 February 2005, Lafayette, California) was an American physical chemist. Considered to be the founder of modern high-temperature chemistry, Brewer received his BS from the California Institute of Technology in 1940 and his PhD from the University of California, Berkeley, in 1942. Brewer joined the Manhattan Project following his graduate work, and joined the faculty at the University of California, Berkeley in 1946. Leo Brewer married Rose Strugo (died 1989) in 1945. They had three children, Beth Gaydos, Roger Brewer, and Gail Brewer. He died in 2005 as a result of Beryllium poisoning from his work in World War II.