etc.

John_Braheny

John Braheny (December 9, 1938 – January 19, 2013) was an American author and singer-songwriter. He released a solo album in 1968, Some Kind of Change, on the Pete label. He was born in 1938 in Iowa. He also wrote songs for others, including "December Dream" in 1967, which was recorded by The Stone Poneys who included lead vocalist Linda Ronstadt. It was released on the band's Evergreen - Volume Two album that year.
He died on January 19, 2013, aged 74.

Carlos_Graef_Fernández

Carlos Graef Fernández (February 25, 1911 – January 13, 1988) was a Mexican physicist and mathematician. A graduate of the National Autonomous University of Mexico (UNAM) and the Massachusetts Institute of Technology (MIT), he was a founding member of the Mexican Mathematical Society and the Mexican Physical Society. He helped to establish the Tonantzintla Observatory and he later directed it. He received the National Prize for Arts and Sciences in 1970.

Virginio_Simonelli

Virginio Simonelli (Italian pronunciation: [virˈdʒiːnjo simoˈnɛlli]; born January 31, 1985), simply known as Virginio, is an Italian pop singer.
He made his debut in 2006 in the Sanremo Festival's New Proposals category with the song Davvero. In 2011 he won the tenth edition of the Italian singing competition Amici di Maria De Filippi in the singers-songwriters category and published his record Finalmente. Between 2012 and 2023 he has released fourteen singles. He has sold more than 30,000 copies of his albums and won a Gold Wind Music Award.

Donald_D._Clayton

Donald Delbert Clayton (March 18, 1935 – January 3, 2024) was an American astrophysicist whose most visible achievement was the prediction from nucleosynthesis theory that supernovae are intensely radioactive. That earned Clayton the NASA Exceptional Scientific Achievement Medal (1992) for “theoretical astrophysics related to the formation of (chemical) elements in the explosions of stars and to the observable products of these explosions”. Supernovae thereafter became the most important stellar events in astronomy owing to their profoundly radioactive nature. Not only did Clayton discover radioactive nucleosynthesis during explosive silicon burning in stars but he also predicted a new type of astronomy based on it, namely the associated gamma-ray line radiation emitted by matter ejected from supernovae. That paper was selected as one of the fifty most influential papers in astronomy during the twentieth century for the Centennial Volume of the American Astronomical Society. He gathered support from influential astronomers and physicists for a new NASA budget item for a gamma-ray-observatory satellite, achieving successful funding for Compton Gamma Ray Observatory. With his focus on radioactive supernova gas Clayton discovered a new chemical pathway causing carbon dust to condense there by a process that is activated by the radioactivity.Clayton also authored a novel, The Joshua Factor (1985), a parable of the origin of mankind utilizing the mystery of solar neutrinos; a science autobiography and a memoir; and a history of the origin of each isotope, Handbook of Isotopes in the Cosmos (Cambridge Univ. Press, 2003).
Clayton died on January 3, 2024, at the age of 88.