University of Bonn alumni

Nathan Zuntz (6 October 1847, in Bonn – 22 March 1920, in Berlin) was a German physiologist born in Bonn. He was a pioneer of modern altitude physiology and aviation medicine.

Hans Meerwein (May 20, 1879 in Hamburg, Germany – October 24, 1965 in Marburg, Germany) was a German chemist.
Several reactions and reagents bear his name, most notably the Meerwein–Ponndorf–Verley reduction, the Wagner–Meerwein rearrangement, the Meerwein arylation reaction, and Meerwein's salt.

Paul Jacobsthal (23 February 1880 in Berlin – 27 October 1957 in Oxford) was a scholar of Greek vase painting and Celtic art. He wrote his dissertation at the University of Bonn under the supervision of Georg Loeschcke. In 1912 he published a catalog of the Greek vases in Göttingen, and received a position as a professor at the University of Marburg.
In the 1920s Jacobsthal became interested in the work of John Beazley on vase painting, and began to adopt Beazley's taxonomical methodologies. His 1927 work, Ornamente griechischer Vasen, was dedicated to Beazley. In 1930 Jacobsthal and Beazley began to collaborate on an inventory of early Greek vases, the Bilder griechischer Vasen, a project which they concluded in 1939. After World War II, the two scholars served as co-editors of the Oxford Classical Monographs.
In 1935 Jacobsthal was forced to leave Nazi Germany on account of his Jewish heritage – though he was baptised a protestant, both of his parents were Jewish. He settled in England, and in 1937 was appointed as a lecturer at Christ Church, Oxford. There he continued his collaboration with Beazley.
Soon after his arrival in England, Jacobsthal began to study the art of the Celts, and in 1944 published his study of Early Celtic Art. This book focused on the impact of Greek ornament on Celtic decorative arts, and was one of the earliest English-language works to employ the terminology established by Alois Riegl in his Stilfragen. From 1947 through 1950 Jacobsthal served as University Reader in Celtic Archaeology at Oxford University.
Jacobsthal's final study, Greek pins and their connexions with Europe and Asia (1956), returned to the cataloguing of material from Greek antiquity, while remaining engaged with issues of the reception of Greek art abroad.
Jacobsthal's students included the Swiss archaeologist Karl Schefold and Hans Möbius.

Johannes Theodor Baargeld was a pseudonym of Alfred Emanuel Ferdinand Grünwald (9 October 1892 – 16 or 17 August 1927), a German painter and poet who, together with Max Ernst, founded the Cologne Dada group. He also used the name Zentrodada in connection with Dada.
Baargeld was born in Stettin (Szczecin), Prussian Pomerania. He studied jurisprudence at Oxford and Bonn. Baargeld was the editor of the periodical The Fan (Der Ventilator) which Ernst and Hans Arp started in 1919, and he collaborated on many other Dadaist publications such as Bulletin D and Dada W/3.

Batty (Jean-Baptiste) Weber (1860–1940) is considered to have been one of Luxembourg's most influential journalists and authors, contributing much to the development of the country's national identity. His style is characterized by his sense of humour and skillful use of irony.

Georg Clemens Perthes (17 January 1869 – 3 January 1927) was a German surgeon and X-ray diagnostic pioneer.

Johannes Orth (14 January 1847 – 13 January 1923 in Berlin) was a German pathologist born in Wallmerod.
He studied medicine at the universities of Heidelberg, Würzburg and Bonn, receiving his habilitation in 1872 while an assistant to Eduard von Rindfleisch at Bonn. Afterwards, he served as an assistant under Rudolf Virchow (1821-1902) in Berlin. In 1878 he became a professor at the University of Göttingen, and in 1902, following the death of Virchow, he returned to Berlin as director of the clinic of pathology.
Orth specialized in the pathological study of infectious diseases, particularly tuberculosis and endocarditis.
In 1875, he documented an account involving an autopsy of a jaundiced infant with intense yellow staining of the basal ganglia, hippocampus, the third ventricle, as well as parts of the cerebellum. However, it wouldn't be until the early 20th century that this condition would be further comprehended. In 1903, pathologist Christian Georg Schmorl (1861-1932) presented the results of 120 autopsies of jaundiced infants, with six of the cases having the staining phenomena described by Orth. Schmorl coined the term "kernicterus" (jaundice of the basal ganglia) for the yellow staining phenomenon.

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.

Friedrich Wilhelm Erich Leschke (23 October 1887, in Bergneustadt – 10 June 1933, in Berlin) was a German internist.
He studied medicine at the University of Bonn, receiving his doctorate in 1911 with the thesis Über die Wirkung des Pankreasextraktes auf pankreasdiabetische und auf normale Tiere ("On the effect of pancreatic extract on pancreatic-diabetic and normal animals"). He later worked at the Friedrich-Wilhelm-Stift in Bonn, at the Eppendorf Hospital in Hamburg and in the 2nd medical clinic at the Berlin Charité. In 1918 he obtained his habilitation at Berlin, where soon afterwards he became an associate professor.His name is associated with Leschke's syndrome, a condition characterized by a combination of asthenia, multiple brown pigment spots on the skin and hyperglycemia. He described the syndrome in a 1922 paper titled Über Pigmentierung bei Funktionsstörungen der Nebenniere und des sympathischen Nervensystems bei der Recklinghausenschen Krankheit.He was the author of numerous papers regarding cardiac, pulmonary and metabolic diseases. His book Die wichtigsten vergiftungen, Fortschritte in deren Erkennung und Behandlung was translated into English and published as Clinical toxicology; modern methods in the diagnosis and treatment of poisoning (1934).

Eduard Kaufmann (24 March 1860, Bonn – 15 December 1931, Göttingen) was a German physician.
The disease Abderhalden–Kaufmann–Lignac syndrome is named for him.