1869 births

Hippolyte Morestin (1 September 1869 – 12 February 1919) was a French surgeon, and associate professor of anatomy at the University of Paris. He was one of the founders of cosmetic surgery. He was dubbed "The Father of the Mouths" after his breakthroughs in oral and maxillofacial surgery.
Morestin was born at Basse-Pointe, a commune in the French overseas department of Martinique. His father Charles Amédée Morestin (d. 1902) was a prominent doctor who influenced both Hippolyte and his younger brother Amédée to study medicine. Both Hippolyte and Amédée dedicated their doctoral theses, defended in Paris in 1894 and 1912, respectively, to their father, and the work of Amédée used observations by Hippolyte.
Morestin greatly influenced the British-New Zealand surgeon Harold Gillies, who met him on leave in Paris during the First World War. Gillies was attached to the British General Hospital in Rouen. Morestin, when Gillies was observing him, removed a tumor from a patient's face, and essentially "grafted" skin by cutting and rolling it from the patient's jaw onto the wound to allow the skin to regrow.Morestin died from a pulmonary illness during the influenza epidemic of 1918–1919.

Carl Beines (15 December 1869 in Rheydt, a borough of Mönchengladbach – 7 October 1950 in Bad Wörishofen) was a German violinist, who for ten years led the Gürzenich Orchestra in Cologne, as well as a pianist, composer, choir director and singing teacher. His most famous pupils were the tenors Richard Tauber and Herbert Ernst Groh, and the baritones Joseph Hermann and Gotthelf Pistor. Tauber trained with him between 1911 and 1913 in Freiburg im Breisgau, where Beines directed the Concordia Choir. It was at one of their concerts on 17 May 1912 that Tauber made his debut. Later Beines lived and taught in Darmstadt, and finally in Bad Wörishofen, where he died.

Abel-Marie Alexis Decaux (11 February 1869 – 19 March 1943) was a French organist, composer, and pedagogue, best known for his piano suite Clairs de lune, some of the earliest pieces of dodecaphony.
A student of Théodore Dubois, Jules Massenet, and Charles-Marie Widor, among others, he was the titular organist of the grand organ of the Sacré-Cœur basilica. Decaux was more renowned as a player and professor during his lifetime than a composer.
He is popularly known as the "French Schoenberg".

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

Alexander McKenzie FRS (6 December 1869, Dundee – 11 June 1951) was a Scottish chemist, specializing in stereochemistry. Kinetic resolution by synthetic means was first reported in 1899 by Marckwald and McKenzie.

Bernhard Kayser (6 August 1869, in Bremen – 11 May 1954, in Stuttgart) was a German ophthalmologist.
He studied at Tübingen and Berlin, receiving his doctorate from the University of Berlin in 1893. Afterwards, he worked as an intern in Tübingen and as an assistant physician in Freiburg im Breisgau. He was then employed as a ship's physician by the North German Lloyd Shipping Company and spent 2½ years in Brazil as a general practitioner. He later worked as a physician in Brandenburg and Bremen, during which time, he developed an interest in ophthalmology. In 1903 he became a specialist in ophthalmology and relocated to Stuttgart, where he spent the remainder of his life. For many years he was editor of the essay section of the Klinische Monatsblätter für Augenheilkunde.Kayser-Fleischer rings are named after him and Bruno Fleischer. Kayser described the condition in a 1902 paper titled Über einen Fall von angeborener grünlicher Verfärbung des Cornea.

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.

Abraham Albert Hijmans van den Bergh (1 December 1869, in Rotterdam – 28 September 1943, in Utrecht) was a Dutch physician specializing in internal medicine. Hijmans van den Bergh is best known for his Van den Bergh reaction.
In 1919 he became member of the Royal Netherlands Academy of Arts and Sciences.Hijmans van den Bergh was of Jewish descent, but neither he or his parents were religiously observant, nor members of a Jewish worship community. Later in life he joined the Remonstrant Church. His final years were spent under the German occupation of the Netherlands; he was spared persecution due to being in a "mixed marriage".

Friedrich Fichter (6 July 1869 – 1952) was a professor of inorganic chemistry at the University of Basel. His main field of interest was electrochemistry. He initiated the founding of the scientific journal Helvetica Chimica Acta.

François Louis Henri Coutière (4 March 1869 in Saulzet – 23 August 1952 in Orvilliers) was a French zoologist, who specialized in the field of carcinology (crustaceans).
In 1895 he received his bachelor's degree in natural sciences, and during the following year, obtained his pharmacy degree 1st class. By way of a recommendation from Alphonse Milne-Edwards, he embarked on a zoological mission to the Red Sea in 1897 on behalf of the Muséum d'Histoire Naturelle. In 1899 he was named chef de service under Milne-Edwards in the laboratory of anatomic zoology at the École des hautes études.In 1899 he obtained his doctorate in natural sciences with a dissertation-thesis on the snapping shrimp family Alpheidae, and during the following year began teaching classes in zoology at the École supérieure de Pharmacie in Paris. From 1902 to 1937 he was a full professor of zoology at the school of pharmacy.In 1910 he was appointed president of the Société zoologique de France. The shrimp genera Coutierea and Coutierella (family Palaemonidae) commemorate his name, as do species with the epithet coutierei; e.g. Stenothoe coutieri (Chevreux, 1908).