Academic staff of Heidelberg University

Gabriel Steiner (26 May 1883, Ulm – 10 August 1965, Detroit) was a German-American neurologist known for his research of multiple sclerosis. In his studies, he postulated a link between multiple sclerosis and certain forms of spirochetes.Of Jewish ancestry, he studied medicine at the universities of Munich, Würzburg, Freiburg and Strasbourg, receiving his doctorate at the latter university in 1910. In 1913 he qualified as a lecturer in neurology and psychiatry, and from 1920, worked as an associate professor at the University of Heidelberg. Here, he was also head of the laboratory for pathological anatomy at the psychiatric-neurological clinic.In 1936 he emigrated to the United States, where from 1937 to 1954, he served as a professor of neurology and neuropathology at Wayne State University School of Medicine in Detroit. In retirement, he was director of the Michigan Multiple Sclerosis Center.

Oskar Perron (7 May 1880 – 22 February 1975) was a German mathematician.
He was a professor at the University of Heidelberg from 1914 to 1922 and at the University of Munich from 1922 to 1951. He made numerous contributions to differential equations and partial differential equations, including the Perron method to solve the Dirichlet problem for elliptic partial differential equations. He wrote an encyclopedic book on continued fractions Die Lehre von den Kettenbrüchen. He introduced Perron's paradox to illustrate the danger of assuming that the solution of an optimization problem exists:

Let N be the largest positive integer. If N > 1, then N2 > N, contradicting the definition of N. Hence N = 1.

Hermann Friedrich Lossen (7 November 1842 – 27 August 1909) was a German surgeon born in Emmershäuser Hütte, Hesse.
He studied under Carl von Voit (Munich), Friedrich Daniel von Recklinghausen (Würzburg), Bernhard von Langenbeck (Berlin) and Theodor Billroth (Vienna), earning his medical doctorate in 1866 from the University of Würzburg. In addition he served as an assistant to Richard von Volkmann at the University of Halle and to Gustav Simon at the University of Heidelberg. In 1866 he became habilitated for surgery at Heidelberg, where in 1874 he was appointed associate professor.

Karl Johann Freudenberg (29 January 1886 Weinheim, Baden – 3 April 1983 Weinheim) was a German chemist who did early seminal work on the absolute configurations to carbohydrates, terpenes, and steroids, and on the structure of cellulose (first correct formula published, 1928) and other polysaccharides, and on the nature, structure, and biosynthesis of lignin. The Research Institute for the Chemistry of Wood and Polysaccharides at the University of Heidelberg was created for him in the mid to late 1930s, and he led this until 1969.

Wilhelm Heinrich Erb (30 November 1840 – 29 October 1921) was a German neurologist. He was born in Winnweiler, and died in Heidelberg.

Viktor Freiherr von Weizsäcker (21 April 1886, in Stuttgart – 9 January 1957, in Heidelberg) was a German physician and physiologist. He was the brother of Ernst von Weizsäcker, and uncle to Richard von Weizsäcker and Carl Friedrich von Weizsäcker. (For his family tree, see Weizsäcker.)
He studied at Tübingen, Freiburg, Berlin, and Heidelberg, where he earned his medical degree in 1910. In 1920, he became head of the neurological department at Ludolf von Krehl's clinic in Heidelberg. In 1941, he succeeded Otfrid Foerster as professor of neurology in Breslau, and in 1945 returned to Heidelberg as a professor of clinical medicine.
Weizsäcker is known for his pioneer work in psychosomatic medicine and for his theories regarding medical anthropology. He is remembered for his concept of Gestaltkreis, an elaboration of Gestalt psychology, in which he explains that biological events are not fixed responses but are dependent upon previous experience and are constantly being repatterned through experience. Via Gestalt, Weizsäcker attempted to theoretically represent the unit of perception and movement.
In the late 1920s, Weizsäcker was co-editor of Die Kreatur with philosopher Martin Buber (1878-1965) and theologian Joseph Wittig (1879-1949). In this journal, Weizsäcker advances his ideas concerning medical anthropology. In 1956, he published Pathosophie, where he tried to create a philosophical understanding of man through his drives, conflicts, and illnesses.

Carl David Alfred Weber (German: [ˈveːbɐ]; 30 July 1868 – 2 May 1958) was a German economist, geographer, sociologist and theoretician of culture whose work was influential in the development of modern economic geography.

Eduard Gottlob Zeller (German: [ˈtsɛlɐ]; 22 January 1814, Kleinbottwar – 19 March 1908, Stuttgart) was a German philosopher and Protestant theologian of the Tübingen School of theology. He was well known for his writings on Ancient Greek philosophy, especially Pre-Socratic Philosophy, and most of all for his celebrated, multi-volume historical treatise The Philosophy of Greeks in their Historical Development (1844–52). Zeller was also a central figure in the revival of neo-Kantianism.