1889 births

Victor van Straelen (14 June 1889 – 29 February 1964) was a Belgian conservationist, palaeontologist and carcinologist.
Van Straelen was born in Antwerp on 14 June 1889, and worked chiefly as a palaeontologist until his retirement in 1954.He was director of the Royal Belgian Institute of Natural Sciences from 1925 to 1954. In 1926, he instigated the world's first gorilla sanctuary in what became the Parc National Albert (now Virunga National Park). In 1933, he was appointed head of the Institut des Parcs Nationaux du Congo Belge, and in 1948, he was on the executive committee at the foundation of the organisation which would become the International Union for Conservation of Nature (IUCN). He was the first president of the Charles Darwin Foundation from its foundation in 1959 until his death in 1964.He was awarded a silver Darwin-Wallace Medal by the Linnean Society of London in 1958.

Gustaaf Paul Robert Magnel (born 15 September 1889 in Essen (Belgium); died 5 July 1955 in Ghent) was a Belgian engineer and professor at Ghent University, known for his expertise regarding reinforced concrete and prestressed concrete.

Otto Lowenstein (7 May 1889 – 25 March 1965) was a German-American neuropsychiatrist who was a native of Osnabrück.
He grew up in Preußisch Oldendorf, the son of Julius Lowenstein, a merchant, and Henriette Grunewald, into a Jewish family, and, when he was 19, began to study mathematics and philosophy at the University of Göttingen, before switching to medicine in another university.In 1914 he received his medical degree from the University of Bonn, and following service as a military physician during World War I, he returned to Bonn as a neuropsychiatric assistant to Alexander Westphal. While at Bonn, he was involved in the fields of pediatric psychiatry and experimental psychology. He pursued funding from the Government of Westphalia, then developed and opened the first children's psychiatric hospital in the world. He became Chief of Staff at this new Neuropsychiatric Hospital of Bonn University (1920–1926). He became Chief Neuropsychiatrist and Director of the State Hospital for Nervous and Mental Diseases and founded the pioneering Neuropsychiatric Hospital for children, serving as its head from 1926 to 1933. This hospital continues to operate to this day and is believed to be the first specialized hospital of its kind in the world. He was the Director of the Institute for Heredity in Neurology and Psychiatry, (Institut Fuer Neurologisch–Psychiatrische Erbforschung) from 1926 to 1933. Together with his wife, Dr Marta (Grunewald) Lowenstein, he conducted hundreds of interviews to develop family histories of neurological illnesses. While in Germany he also began early research into pupillography as a means to detect and diagnose mental and neurological disorders including engineering the first machines and methodologies to assist in the study of the eye as a window to the brain.
In 1933, because of his Jewish ethnicity, he relocated to Switzerland in order to escape Nazi persecution (led by a former army colleague who was envious of his work), working as a neuropsychiatrist at the Clinique La Métairie in Nyon. He was a member of the faculty of the University of Geneva, Department of Ophthalmology, and Director of the Pupillographic Laboratory from 1935 to 1939. Under his leadership, the laboratory and the equipment pioneered there were invented and used in his researching the pupil. In 1939 he emigrated to New York City, where he was associated with New York University and later Columbia Presbyterian Hospital. In New York, he continued neuro-ophthalmological research with his research assistant Irene Loewenfeld. As he was preparing final edits to a major compendium of his life work specializing on the pupil, he was taken ill with pancreatic cancer. His work was entrusted to Dr Loewenfeld who had received her Ph.D. From the University of Bonn under Dr Lowenstein's mentorship. The work was ultimately published in the 1990s and contains his research in two volumes.He is remembered for his studies involving motion, size and functionality of the eye's pupil from a neuropsychiatric standpoint. In Germany and America, he created laboratories containing specialized equipment for research of the eye's pupil. He was particularly interested in the status of an individual's pupil during specific emotional and psychological states, as well as the condition of the pupil during periods of fatigue and alertness.
In 1957, he built an "electronic pupillograph" that incorporated infrared technology. This device was used to accurately measure and analyze the pupils' diameter, and was a forerunner to more sophisticated pupillographic instruments that were developed in later years. Lowenstein's pioneer experiments and numerous publications on pupillary topics were a major factor in bringing pupillography into American neuro-ophthalmological medicine.
Recently, a psychiatric clinic for children called Das Professor Otto Löwenstein Haus was founded at the University of Bonn in Lowenstein's honor.
He was survived by his wife Marta who died later in the same year and by his two daughters, Anne Elizabeth Löwenstein Perls of Pacific Palisades, California, and Mary Dorothy Theresa Löwenstein Rowe (aka Marieli Rowe) of Madison, Wisconsin.

Paul Fallot (25 June 1889 in Strasbourg – 21 October 1960 in Paris) was a French geologist and paleontologist. Throughout his career the Mediterranean region, and especially Spain, was the focus of his work.
Fallot began his studies in 1908 at the University of Lausanne, under the well known geologist Maurice Lugeon. In 1909 he moved to Grenoble to work at the laboratory of geologist and paleontologist Wilfred Kilian on ammonites of the Balearic Islands. In 1910-1911 he broadens his knowledge of general geology and stratigraphy at the Sorbonne led with Emile Haug.
From 1914 to 1916 he serves in the French army, which earned him the Croix de Guerre, with five honorable mentions, and the Ordre national de la Légion d'honneur Cross.
After the war, Fallot was employed by his former teacher Kilian in Grenoble and continued his work in Mallorca. His "Geological Etude de la Sierra de Majorque" appears in 1922. The next year Paul Fallot was appointed director of the Institute of Applied Geology in Nancy, a position he keeps the next 14 years. With staff and students he worked in the Jura, but his main work he performed in the Betic ranges of southern Spain and the Rif Mountains of North Africa. In 1931 the Academy of Sciences grants Fallot the Grand Prix des Sciences physiques.
His appointment in 1937 as professor of Geology of the Mediterranean at the Collège de France, seemed the opportunity to scale up his work on the tectonics of the entire area with a team of specialists, but the outbreak of World War II hindered this. During the war he stayed in Paris, prepared publications of the Geological Service of Morocco, proposes a comprehensive document together on the geology of subbetische chains and analyzes the layers of the Triassic of Algeria.
In 1948 Paul Fallot was appointed as member of the Académie des Sciences. Fallot was also one of the foreign members of the Royal Netherlands Academy of Arts and Sciences since May 1960. The Lower Cambrian trilobite genus Fallotaspis was named in his honour.

Georges Louis Bouligand (13 October 1889 – 12 April 1979) was a French mathematician. He worked in analysis, mechanics, analytical and differential geometry, topology, and mathematical physics. He is known for introducing the concept of paratingent cones and contingent cones.

Georges Melchior (15 September 1889 – 2 September 1944) was a French actor of the silent era. He appeared in 67 films between 1911 and 1937.

Pierre Lestringuez (October 17, 1889 – October 18, 1950) was a French screenwriter and film actor. He wrote the screenplays for several Jean Renoir silent films during the 1920s.

Pierre Finaly (1889–1937) was a French stage and film actor.Finaly was born into a family with Hungarian Jewish roots and died in Paris.

René Donnio (29 August 1889 – 2 January 1934) was a French film actor.

Albert Dieudonné (26 November 1889 – 19 March 1976) was a French actor, screenwriter, film director and novelist.