Vocation : Engineer : Chemical

Sir Hans Adolf Krebs, FRS (, German: [hans ˈʔaːdɔlf ˈkʁeːps] ; 25 August 1900 – 22 November 1981) was a German-British biologist, physician and biochemist. He was a pioneer scientist in the study of cellular respiration, a biochemical process in living cells that extracts energy from food and oxygen and makes it available to drive the processes of life. He is best known for his discoveries of two important sequences of chemical reactions that take place in the cells of nearly all organisms, including humans, other than anaerobic microorganisms, namely the citric acid cycle and the urea cycle. The former, often eponymously known as the "Krebs cycle", is the sequence of metabolic reactions that allows cells of oxygen-respiring organisms to obtain far more ATP from the food they consume than anaerobic processes such as glycolysis can supply; and its discovery earned Krebs a Nobel Prize in Physiology or Medicine in 1953. With Hans Kornberg, he also discovered the glyoxylate cycle, a slight variation of the citric acid cycle found in plants, bacteria, protists, and fungi.
Krebs died in 1981 in Oxford, where he had spent 13 years of his career from 1954 until his retirement in 1967 at the University of Oxford.

Grant McDonald Wilson (May 24, 1931 – September 10, 2012) was a notable American thermodynamicist. He is widely known to the fields of chemical engineering and physical chemistry for having developed the Wilson equation, one of the first attempts of practical importance to model nonideal behavior in liquid mixtures as observed in practice with common polar compounds such as alcohols, amines, etc. The equation has been in use in all commercial chemical process simulators to predict phase behavior and produce safe process designs of commercial and environmental protection importance to the chemical industry. He founded the company Wilco (now Wiltec) in 1977 to research, measure, commercialize, and publish thermophysical property data for numerous chemical mixtures of interest to the industry. The Journal of Chemical & Engineering Data published a posthumous issue in honor of Wilson in April 2014 in recognition of his extensive contributions to the field.

Riki Kobayashi (1924–2013) was a chemical engineer and a long-time professor of chemical engineering at Rice University. A native of Harris County, Texas, he attended Rice University (then known as Rice Institute) and earned the Bachelor of Science in chemical engineering at the age of 19. After serving in the U.S. Army, he went to the University of Michigan, where he earned the Master of Science degree in 1946 and the Doctor of Philosophy degree in 1951, both in chemical engineering. He became a member of the Rice faculty in 1951 and remained there until he retired in 1994. He died July 19, 2013, in Houston, Texas.

Georges Claude (24 September 1870 – 23 May 1960) was a French engineer and inventor. He is noted for his early work on the industrial liquefaction of air, for the invention and commercialization of neon lighting, and for a large experiment on generating energy by pumping cold seawater up from the depths. He has been considered by some to be "the Edison of France". Claude was an active collaborator with the German occupiers of France during the Second World War, for which he was imprisoned in 1945 and stripped of his honors.

Alex Golden Oblad (November 26, 1909 – September 19, 2000) was a prominent chemist and chemical engineer principally recognized for his pioneering work in catalysis and catalytic chemistry.

John Richard Hall (November 30, 1932 – November 25, 2021) was an American businessman, and the chairman and CEO of Ashland Oil Inc. from 1981 to 1997.

Eduardo De Filippo OMRI (Italian: [eduˈardo de fiˈlippo]; 26 May 1900 – 31 October 1984), also known simply as Eduardo, was an Italian actor, director, screenwriter and playwright, best known for his Neapolitan works Filumena Marturano and Napoli Milionaria. Considered one of the most important Italian artists of the 20th century, De Filippo was the author of many theatrical dramas staged and directed by himself first and later awarded and played outside Italy. For his artistic merits and contributions to Italian culture, he was named senatore a vita by the President of the Italian Republic Sandro Pertini.