Academic staff of the University of K\u00f6nigsberg

Walther Kruse (September 8, 1864 – 1943) was a German bacteriologist who was a native of Berlin.
In 1888 he received his doctorate from Berlin, where he was a student of Rudolf Virchow (1821–1902). From 1889 until 1892 he worked as a bacteriologist in Naples, and in 1892 travelled to Egypt to perform research on dysentery. In 1893 he became an assistant to hygienist Carl Flügge (1847–1923) in Breslau, and in 1898 became an associate professor at the University of Bonn. Later he served as a full professor in Königsberg (1900), Bonn (1911) and Leipzig (1913).
Walther Kruse is remembered for his work in parasitology and his research of intestinal bacteria infections. He performed extensive studies of Shigella dysenteriae during an epidemic of dysentery in the Ruhr area of Germany. This organism is sometimes referred to as the "Shiga–Kruse bacillus", and its associated disease as "Shiga–Kruse dysentery". These eponyms are shared with Japanese bacteriologist Kiyoshi Shiga (1871–1957). Kruse documented his findings in a 1900 treatise titled Über die Ruhr als Volkskrankheit und ihren Erreger.
In 1914 he demonstrated that the common cold could be transmitted to healthy individuals via nasal secretions that were free of bacteria. The results of these experiments were published in a treatise called Die Erreger von Husten und Schnupfen (1914). A specialized tool used to spread material over the surface of a culture medium is called "Kruse's brush".

Konrad Hermann Theodor Knopp (22 July 1882 – 20 April 1957) was a German mathematician who worked on generalized limits and complex functions.

Paul Maas (18 November 1880, in Frankfurt am Main – 15 July 1964, in Oxford) was a German scholar who, along with Karl Lachmann, founded the field of textual criticism.He studied classical philology at the universities of Berlin and Munich, receiving his doctorate in 1903. In 1910 he obtained his habilitation and in 1920 became a full professor at Berlin. In 1930 he was appointed chair of classical philology at the University of Königsberg. In 1934 he was forced into retirement by the Nazi government due to his Jewish ancestry, and in 1939 he emigrated to Great Britain, where he taught classes at Oxford University. After his death, he was buried at Wolvercote Cemetery's Jewish section in Oxford.

Johann Carl Kaiserling (3 February 1869 - 20 August 1942) was a German pathologist who was a native of Kassel-Wehlheiden.
He studied medicine in Munich, Kiel and Berlin, earning his medical doctorate in 1893. In 1902, he became privatdozent at the University of Berlin, and from 1912 was a professor of general pathology and pathological anatomy at the University of Königsberg.His name is associated with "Kaiserling's fixative", a means of preserving histologic and pathologic specimens without changing the natural color. This fixative is an aqueous solution of formalin, potassium nitrate and potassium acetate. Kaiserling is also known for his pioneer work in the field of photomicrography.

Alexander Ellinger (17 April 1870 in Frankfurt am Main – 26 July 1923 in Frankfurt am Main) was a German chemist and pharmacologist.
From 1887 he studied chemistry at the University of Berlin under August Wilhelm von Hofmann and at the University of Bonn as a pupil of August Kekulé. Afterwards, he studied medicine at the University of Munich, followed by work as an assistant in the institute of pharmacology at the University of Strasbourg. In 1897 he became an assistant to Max Jaffé in the laboratory of medicinal chemistry and experimental pharmacology at the University of Königsberg. In 1914 he was appointed professor of pharmacology at the newly established University of Frankfurt.He is remembered for his extensive biochemical research of several amino acids, especially tryptophan. In 1904 he isolated kynurenic acid from the urine of dogs that had been fed tryptophan. His other work included studies on the water exchange between body tissues and blood, on the formation on lymph, and with chemist Karl Spiro, he conducted investigations of blood coagulation.

Ludwig Georg Elias Moses Bieberbach (German: [ˈbiːbɐˌbaχ]; 4 December 1886 – 1 September 1982) was a German mathematician and Nazi.

Karl Erich Andrée (10 March 1880, in Münder am Deister – 18 August 1959, in Göttingen) was a German geologist and paleontologist.
He studied chemistry at the Technical University of Hannover and mineralogy, geology, paleontology and zoology at the University of Göttingen, receiving his doctorate in 1904. At Göttingen, he was encouraged by Adolf von Koenen to write his dissertation-thesis on the geology of Iburg. Later on, he worked as an assistant at the Mineralogical-Geological Institute of the Bergakademie in Clausthal (1906–08) and at the Technical University of Karlsruhe (1908–10).
In 1910 he obtained his habilitation from the University of Marburg, and five years later, became an associate professor of geology and paleontology at the University of Königsberg. In 1921 he attained a full professorship, and in 1930/31 he served as university rector. At Königsberg, he was also director at the Geological-Paleontological Institute and in charge of the amber collections. From 1946 onward, he taught classes on geology at the University of Göttingen. He was the author of over 125 scientific papers.

Felix Ludwig Julius Dahn (9 February 1834 – 3 January 1912) was a German law professor and nationalist author, poet and historian.