Vocation : Education : Teacher

Jean-Baptiste Fresez (1800–1867) was Luxembourg's most important 19th-century painter. He is remembered above all for his almost photographic images of the City of Luxembourg.

Hermann Pagenstecher (September 16, 1844 – December 31, 1932) was a German ophthalmologist born in Langenschwalbach.
In 1867 he obtained his doctorate from the University of Würzburg, and shortly afterwards was an assistant at the internal medicine clinic in Greifswald (1867-68). Later he studied with ophthalmologist Albrecht von Graefe (1828-1870) in Berlin, then subsequently took an extended scientific trip to London, Edinburgh and Paris.
After returning to Germany, he worked with his older brother, Alexander Pagenstecher (1828-1879), at the latter's eye clinic in Wiesbaden. After the untimely death of his brother in 1879, he took charge of the Wiesbaden eye clinic. In 1890 he became a professor of ophthalmology.
On May 7, 1899 he visited Queen Victoria at Windsor Castle to examine her eyesight. In her private journal she wrote:

"Professor Pagenstecher, the famous German occulist, who is staying at Cumberland Lodge. He said he found my eyes no worse, in fact rather better, which is a great encouragement."Pagenstecher is remembered for advancing his brother's pioneer work with intracapsular cataract extraction, of which he described in the monograph Die Operation des grauen Stars in geschlossener Kapsel. With Carl Genth (1844-1904), he was co-author of Atlas der pathologischen Anatomie des Augapfels (Atlas of the Pathological Anatomy of the Eyeball), a book that was later translated into English by neurologist William Richard Gowers (1845-1915).

Christian Schweigaard Stang (15 March 1900 – 2 July 1977) was a Norwegian linguist, Slavicist and Balticist, professor in Balto-Slavic languages at the University of Oslo from 1938 until shortly before his death. He specialized in the study of Lithuanian and was highly regarded in Lithuania.

Francesco de Sanctis (28 March 1817 – 29 December 1883) was a leading Italian literary critic and scholar of Italian language and literature during the 19th century.

Michael J. O'Brien (born May 4, 1939) is an American politician in the state of Iowa.
O'Brien was born in Shenandoah, Iowa. He attended Iowa State University and the University of Northern Iowa and was a teacher. A Democrat, he served in the Iowa House of Representatives from 1993 to 2003 (79th district).

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.

Silvio Spaventa (12 May 1822 – 20 June 1893) was an Italian journalist, politician and statesman who played a leading role in the unification of Italy, and subsequently held important positions within the newly formed Italian state.

Phyllis Ann Love (December 21, 1925 – October 30, 2011) was an American theater and television actress.

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

Neil Clark Warren (born September 18, 1934) is an American clinical psychologist, Christian theologian, seminary professor and co-founder of the online relationship sites eHarmony and Compatible Partners.
In 1995, Warren and his son-in-law, Greg Forgatch, created Neil Clark Warren & Associates, a company which offers seminars and teaching tools based on Warren's books. In early 2000, they established eHarmony, an online compatibility matching service which gained two million users in its first three years. After retiring in 2007, Warren came out of retirement in July 2012, returning as the chief executive of eHarmony.