1884 births

Édouard Charles Octave Mignan (17 March 1884 - 17 September 1969) was a French organist and composer.
He was born in Orléans and 14 years old he became the organist of église Saint Paterne. He studied organ in Paris with Alexandre Guilmant and Louis Vierne and won the Grand Prix de Rome in 1912. He was organist at Saint-Thomas-d'Aquin from 1917 to 1935. He succeeded Henri Dallier as organist of la Madeleine in 1935 and held that post until 1962.He died in Paris at the age of 85.

Achille Joseph Urbain (9 May 1884 – 5 December 1957) was a French biologist born in Le Havre.

Paul Trendelenburg (24 March 1884, Bonn – 4 February 1931, Berlin) was a German pharmacologist.
He studied medicine at the universities of Grenoble, Leipzig and Freiburg, where from 1909 to 1918, he worked as an assistant in the pharmacological institute and at the surgical clinic. In 1912 he received his habilitation in pharmacology and toxicology, and from 1916 was an associate professor. In 1919 he became a full professor at the University of Rostock and later on, he served as a professor of pharmacology at the universities of Freiburg (from 1923) and Berlin (from 1927).He is known for his research of adrenaline, for the development of biological measurement procedures for the standardization of hormone preparations and for his investigations regarding the role of the hypothalamic hormones vasopressin and oxytocin. His name is associated with the so-called "Trendelenburg preparation", a preparation used in determining the actions of pharmacological agents on peristalsis.He was the son of surgeon Friedrich Trendelenburg and the brother of physiologist Wilhelm Trendelenburg. His son, Ullrich Georg Trendelenburg, was also a pharmacologist.

Catherine Schleimer-Kill, née Kill (1884–1973), was a Luxembourg suffragist and women's rights activist. She was founder and secretary of the Action féminine.

Gaston Diderich (18 June 1884 – 29 April 1946) was a Luxembourgish politician and jurist. He was the Mayor of Luxembourg City from 1921 until his death in 1946, making his the longest uninterrupted tenure in the city's history. In addition, Diderich was a member of the Chamber of Deputies from 1918 until 1940, and again from 1945 until his death the following year.
Diderich started political life in the Liberal League, of which he was on the progressive wing. After the German occupation during the First World War, the Liberal League found itself in opposition for the first time and suffered ideological divisions. Diderich, being Mayor of Luxembourg City, took the role of leading the left-wing of the party, opposed to the leadership of the classical liberal Robert Brasseur, who had founded the party in 1904. The left-wing eventually triumphed, but only at the price of collapsing the party. The main party of the party, predominantly the left-wing, reformed as the Radical Socialist Party,. under Diderich's leadership.

Thomas Murray MacRobert (4 April 1884, in Dreghorn, Ayrshire – 1 November 1962, in Glasgow) was a Scottish mathematician. He became professor of mathematics at the University of Glasgow and introduced the MacRobert E function, a generalisation of the generalised hypergeometric series.

Corrado Gini (23 May 1884 – 13 March 1965) was an Italian statistician, demographer and sociologist who developed the Gini coefficient, a measure of the income inequality in a society. Gini was a proponent of organicism and applied it to nations. Gini was a eugenicist, and prior to and during World War II, he was an advocate of Italian Fascism. Following the war, he founded the Italian Unionist Movement, which advocated for the annexation of Italy by the United States.

Léon Dufourmentel (1884 – July 29, 1957) was a French surgeon, son of a merchant, who specialized in maxillofacial surgery, leading to reconstructive surgery. Intern of Hospitals of Paris, then leader of the clinical faculty of medicine of Paris. He was the son-in-law of the anatomist Pierre Sebileau, and the father of plastic surgeon Claude Dufourmentel (Former head of department at the Hôpital Saint-Louis).
During the First World War, he was responsible for caring for gueules cassées (broken faces), and being led to the creation of units of maxillofacial surgery, he found a method for repairing facial wounds: He described a pedicled vascularized flap from the temporal scalp (popularly called a Dufourmentel flap)(http://www.biusante.parisdescartes.fr/1418/cadre2e.htm) and transferred the tissue to the chin area. This tissue transfer was more reliable than a free skin graft. It was his idea to first use prosthetic inclusions prior to 1930 - then implants used were mostly made of ivory, rubber on the nose.

Giuseppe Caronia (15 May 1884 – 15 January 1977) was an Italian politician.
Caronia was born in San Cipirello. He represented the Christian Democracy party in the Constituent Assembly of Italy from 1946 to 1948 and in the Chamber of Deputies from 1948 to 1958. He nominated Pope Pius XII for a Nobel Peace Prize in 1948. In 1996 he was recognized as Righteous Among the Nations by the Yad Vashem.

Francis Salabert (born François-Joseph-Charles Salabert, 27 July 1884 – 28 December 1946) was an innovative and influential French music publisher, who was the head of Éditions Salabert in the first half of the twentieth century.