Vocation : Science : Geology

Dewey Follett Bartlett Sr. (March 28, 1919 – March 1, 1979) was an American politician who served as the 19th governor of Oklahoma from 1967 to 1971, following his fellow Republican, Henry Bellmon. In 1966, he became the first Roman Catholic elected governor of Oklahoma, defeating the Democratic nominee, Preston J. Moore of Oklahoma City. He was defeated for reelection in 1970 by Tulsa attorney David Hall in the closest election in state history. He was elected to the United States Senate in 1972 and served one term. In 1978, he was diagnosed with lung cancer and did not run for reelection that year. He died of complications of lung cancer two months after retiring from the Senate in 1979.

Eugene Merle Shoemaker (April 28, 1928 – July 18, 1997) was an American geologist. He co-discovered Comet Shoemaker–Levy 9 with his wife Carolyn S. Shoemaker and David H. Levy. This comet hit Jupiter in July 1994: the impact was televised around the world. Shoemaker also studied terrestrial craters, such as Barringer Meteor Crater in Arizona, and along with Edward Chao provided the first conclusive evidence of its origin as an impact crater. He was also the first director of the United States Geological Survey's Astrogeology Research Program.
He was killed in a car accident while visiting an impact crater site in Australia. After his death, some of his ashes were carried to the Moon with the Lunar Prospector mission.

Johannes Iversen (Danish pronunciation: [ˈiˀvɐsn̩], 12 December 1904 – 17 October 1971) was a Danish palaeoecologist and plant ecologist.

See also German classic philologist, Wilhelm Kroll (philologist) (1869–1939).William Justin Kroll (born Guillaume Justin Kroll; November 24, 1889 – March 30, 1973) was a Luxembourgish metallurgist. He is best known for inventing the Kroll process in 1940, which is used commercially to extract metallic titanium from ore.

Group Captain James Martin Stagg, (30 June 1900 – 23 June 1975) was a British Met Office meteorologist attached to the Royal Air Force during the Second World War who notably persuaded General Dwight D. Eisenhower to change the date of the Allied invasion of Europe from 5 to 6 June 1944.

Clair Cameron Patterson (June 2, 1922 – December 5, 1995) was an American geochemist. Born in Mitchellville, Iowa, Patterson graduated from Grinnell College. He later received his Ph.D. from the University of Chicago and spent his entire professional career at the California Institute of Technology (Caltech).
In collaboration with George Tilton, Patterson developed the uranium–lead dating method into lead–lead dating. By using lead isotopic data from the Canyon Diablo meteorite, he calculated an age for the Earth of 4.55 billion years, which was a figure far more accurate than those that existed at the time, and one that has remained largely unchallenged since 1956.
Patterson first encountered lead contamination in the late 1940s as a graduate student at the University of Chicago. His work on this subject led to a total re-evaluation of the growth in industrial lead concentrations in the atmosphere and the human body, and his subsequent activism was seminal in the banning of tetraethyllead in gasoline and lead solder in food cans.

Kenneth Marshall Watson (September 7, 1921 – August 18, 2023) was an American theoretical physicist and physical oceanographer.

Adolphe Alexandre Chaillet (July 15, 1867, in Paris – after 1914) was a French inventor in the field of electrical engineering.
Chaillet created the Centennial Light, which has been illuminating a fire station in Livermore, California, for over a century. Chaillet was knowledgeable in chemistry and mineralogy.

Richard Hall Tedford (April 25, 1929 – July 15, 2011) was Curator Emeritus in the Department of Vertebrate Paleontology of the American Museum of Natural History in New York City, having been named as curator in 1969.Born in Encino, California, he received a bachelor's degree from the University of California, Los Angeles with a major in chemistry and earned his Ph.D. from the University of California, Berkeley in 1959.Tedford was one of the foremost authorities on the evolution of Carnivores and had been working, often with Prof. Xiaoming Wang, on the fossil history of the Canidae establishing the basis on the evolutionary relationship of canids over the past 40 million years.Tedford was a resident of Demarest, New Jersey at the time of his death on July 15, 2011, having earlier lived in nearby Cresskill. After suffering from colon cancer, his death followed a skull fracture that resulted from an accidental fall in his home.For his work on tertiary mammals uncovered at the Australian Fossil Mammal Sites (Riversleigh), he was commemorated in the epithet of an Eocene microbat species Rhinonicteris tedfordi.