1929 deaths

Johnny_Hill

Johnny Hill (14 December 1905 – 27 September 1929) was a Scottish boxer who was British flyweight champion from May 1927, European champion from March 1928, and World champion from August 1928, until his death at the age of 23. He was the first Scottish boxer to win a world title.

Jean-Baptiste_Mimiague

Jean-Baptiste Narcisse Mimiague (3 February 1871 in Villefranche-sur-Mer – 6 August 1929 in Nice) was a French fencer who competed in the early 20th century.
He participated in Fencing at the 1900 Summer Olympics in Paris and won both his bouts against the famous Italian fencer Italo Santelli. He won the bronze medal in the individual foil masters.

Meta_Seinemeyer

Meta Seinemeyer (September 5, 1895 – August 19, 1929) was a German opera singer with a spinto soprano voice.
Seinemeyer was born in Berlin, where she studied at the Stern Conservatory with Ernst Grenzebach. She made her debut at the Deutsche Opernhaus in 1918. She joined the Dresden Semperoper in 1924, and began appearing at the Vienna State Opera in 1927.
On the international scene, she sang at the Teatro Colón in Buenos Aires, as Agathe in Der Freischütz, Sieglinde in Die Walküre, Elisabeth in Tannhäuser and Eva in Die Meistersinger von Nürnberg in 1926, and at the Royal Opera House in London in 1929, as Eva, Elsa in Lohengrin and Sieglinde.
Besides the great Wagner heroines, she also played an important role in the renaissance of Verdi's operas in Germany, winning considerable acclaim as Leonora in La forza del destino, Elisabeth de Valois in Don Carlos, and the title role in Aida. She was also admired as Marguerite in Faust, Maddalena in Andrea Chénier, and the title role in Tosca.
She took part in the creation of Ferruccio Busoni's Doktor Faust in Dresden in 1925.
Her voice is notable for her flawless management of register breaks, resulting in a seamless stream of tone from top to bottom. The voice has a very rich, enveloping sound, discernable even despite the limitations of the extant acoustic recordings. In some of these she partners the tenor Tino Pattiera, with whom she often appeared on stage.
One of the greatest German singers of her generation, her career was cut short when she died of leukemia in Dresden a few weeks short of her 34th birthday. Very shortly before her death, she married the conductor Frieder Weissmann(1893–1984). She is buried at the Stahnsdorf South-Western Cemetery close to Berlin.

Walter_Gramatté

Walter Gramatté (8 January 1897 in Berlin – 9 February 1929 in Hamburg) was a German expressionist painter who specialized in magic realism. He worked in Berlin, Hamburg, Hiddensee and Barcelona. He often painted with a mystical view of nature. Many of his works were inspired by his experiences in the First World War and his illness.

Arthur_Scherbius

Arthur Scherbius (30 October 1878 – 13 May 1929) was a German electrical engineer who invented the mechanical cipher Enigma machine. He patented the invention and later sold the machine under the brand name Enigma.
Scherbius offered unequalled opportunities and showed the importance of cryptography to both military and civil intelligence.

Charles_Riquier

Charles Edmond Alfred Riquier (19 November 1853, Amiens – 17 January 1929, Caen) was a French mathematician.Riquier matriculated in 1873 at the École Normale Supérieure (ENS) where he received his agrégé in mathematics in 1876. He taught from 1876 to 1878 at the Lycée de Brest and then from 1878 to 1886 at the Lycée de Caen and from 1886 to 1924 at the Université de Caen, where he retired as a professor emeritus.
After a brief leave of absence from the Lycée de Caen, Riquier received his doctorate in mathematics in 1886 from ENS at Paris with dissertation Extension à l’hyperespace de la méthode de M. Carl Neumann pour la résolution de problèmes relatifs aux fonctions de variables réelles à laplacien nul. His thesis committee consisted of Hermite (as chair), Darboux, and Picard.In 1910 he was awarded the Poncelet Prize. In 1920 he was elected to the French Academy of Sciences as the successor to Hieronymus Zeuthen. (Eugène Fabry was elected Riquier's successor in 1931.)
Riquier, Maurice Janet, Joseph Miller Thomas, Joseph Fels Ritt, and Ellis Kolchin were among the greatest pioneers of differential algebra and symbolic computation for systems of partial differential equations.