Collector and collaborator on catalogs of German and Netherlandish paintings with his brother Sulpiz. Melchior came from an old wealthy family who hoped he would become a scientist and his older brother, Sulpiz Boisserée, run the family business. The two were raised during the Napoleonic occupation of Cologne. Through his friend Johann B. Bertram he and Sulpiz became interested in art and especially that of the medieval era, a period well represented by the so-called Cologne school of painting, though much under appreciated.

Collector and architectural historian, who, with his brother, Melchior, introduced a romantic conception to art history. Sulpiz came from an old wealthy family who hoped he would follow in the family business (and that his brother, Melchior Boisserée, would become a scientist). The two were raised during the Napoleonic occupation of Cologne. Sulpiz attended school in Hamburg but returned to Cologne in 1799. Through his friend Johann B.

Berlin art historian and early exponent of the study of Baroque art. Brinckmann's father was an architect; the younger Brinckmann learned the elements of architecture as a youth. He studied art history and archaeology at the universities of Munich and Berlin. He wrote his dissertation under Heinrich Wölfflin. His dissertation employs methodology of developmentalism and psychology of his mentor. In 1909 he became an assistant at the Technische Hochschule in Aachen, completing his habilitation a year later on Renaissance city planning, dedicated to Wölfflin.

Collector, historian, and scholar of Modernist art and literature, particularly of sculpture. Carola Welcker was born in Cologne in 1893 to German banker Carl Welcker (1848-1928) and his American wife, Mary Legien (1865-1919). Welcker began studying art history at the University of Munich in 1915 under Heinrich Wölfflin. While studying at Munich, she met fellow student Sigfried Giedion, a prominent architectural historian, whom she married in 1919, adopting the surname Giedion-Welcker.

Scholar of Greek and Roman architecture and sculpture. Kähler studied classical archaeology and art history at the university of Freiburg im Breisgau. He wrote his dissertation under Hans Dragendorff in 1929. After securing a travel stipend from the DAI (Deutsches Archäologisches Institut or Geman Archaeological Institute) Kähler spent 1930-31 in France, Spain, Greece, Rome and Asia Minor.

Originally trained and active as an architect, Krischen was nonetheless a student of Theodor Wiegand and Robert Koldewey, and after active work in excavation campaigns prior to World War I, became a professor of archaeology and art history at the Technical University of Aachen (1919-1924) and the Technical University of Danzig (1924-1945). An accomplished illustrator, Krischen was also well known for his artistic recreations of ancient life (Ein Festtag am Hofe des Königs Minos, 1921).

Useful arts and modernist art historian. Elisabeth Moses was born in 1893 in Cologne, Germany.  Her father, Dr. Salli Moses was an otolaryngologist in private hospital practice in Cologne. Her mother,  Luise “Lucie"  Rothschild (Moses), worked on board of the Cologne Association of Jewish nurses. Elizabeth Moses began her studies at the unique  Humanistisches Mädchengymnasium am Marienplatz (humanistic girls' high school) in Cologne, a manifestation of the women’s movement there. A classmate was the later art historian Luise Straus.

Art critic, journalist, and prolific author with expertise in modern art and architecture, German literature and theater, and Berlin’s history and architecture. He used the pseudonym Heinrich Garbel. Max Osborn was born in Cologne, Germany in 1870 to a father who was a banker and Clotilde Cohn (Osborn). Osborn studied in Cologne at Apostelgymnasium. In 1881, he moved with his family to Berlin, where he continued his studies at Wilhelms-Gymnasium. He received his abitur there in 1888.

Specialist in ancient Greek and Roman art, particularly vase painting and Greek wall painting. Rumpf was the son of the artist Fritz Rumpf. Rumpf was editor of the influential Griechische und römische Kunst (1932, part of the Einleitung in der Altertumswissenschaft series). Professor at the University of Cologne (Institut für Klassische Archëologie) (1928-1960). Upon his retirement in 1960 he was succeeded at the University at Cologne by Heinz Kähler.

Museum curator and professor with expertise in East Asian art, art of the Eurasian steppes, and Chinese jades. Alfred Salmony was born in Cologne, Germany in 1890. From 1912-1920, Salmony studied art history and archaeology in Bonn and Vienna under Paul Clemen and Josef Strzygowski. His studies were interrupted from 1914-1917 due to his cavalry service in World War I. He was conferred his degree under Clemen and completed his dissertation, Europa - Ostasien.