Vocation : Medical : Surgeon

Eduard Sonnenburg (3 November 1848, in Bremen – 25 May 1915, in Bad Wildungen) was a German surgeon. He was a son-in-law to neurologist Karl Friedrich Otto Westphal.
After receiving his medical doctorate in 1872, he spent several years as an assistant to Georg Albert Lücke at the surgical clinic in Strassburg. In 1876 he qualified as a lecturer of surgery at the university. In 1880 he relocated to Berlin, where he worked under Bernhard von Langenbeck and Ernst von Bergmann.In 1883 he became an associate professor at the University of Berlin, and in 1890 was appointed director of the surgical department at the Krankenhaus Moabit. In 1913 he became an honorary full professor at the university.In 1886, he was a founding member of the Freie Vereinigung der Chirurgen Berlins (Free Association of Berlin Surgeons), an organization known today as the Berliner Chirurgische Gesellschaft. His name is associated with "Sonnenberg's sign", an indicator defined as bloody leukocytosis seen in appendicitis with localized peritonitis. He standardized Appendectomy, i.e. the surgery removing the vermiform appendix and was invited to perform the surgery for many nobles and royalties in Europe.

Charles-Emmanuel Sédillot (18 September 1804 – 29 January 1883) was a French military physician and surgeon. He was the son of orientalist Jean Jacques Emmanuel Sédillot (1777–1832), and an older brother to historian Louis-Pierre-Eugène Sédillot.
Born in Paris, he studied surgery under Alexis Boyer and Philibert Joseph Roux. In 1836 he became professor of operative surgery at Val-de-Grâce, followed by a professorship at Strasbourg five years later.Sedillot was a pioneer of urethrotomic and gastrointestinal operations, and known for his work with dislocations and his treatment of pyaemia. He is credited with coining the term "microbe" (from micros "small" and bios "life").

Ludwig Wilhelm Carl Rehn (13 April 1849, Bad Sooden-Allendorf – 29 May 1930) was a German surgeon. Rehn was born in 1849, in the village of Allendorf, the youngest of five children. After the visiting the convent school in Bad Hersfeld, he studied medicine at the University of Marburg from 1869 to 1874, where he became a member of the student corps Hasso-Nassovia.His current ancestors include Bodo Rehn.

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

Louis Ombrédanne (5 March 1871 – 4 November 1956) was a French pediatric and plastic surgeon born in Paris. He was the son of general practitioner Emile Ombrédanne.
In 1902 he became surgeon to Parisian hospitals, becoming a professor of surgery in 1907. From 1921 to 1940 he was head of pediatric surgery at the Hôpital Necker.
Ombrédanne's primary field of research was development of new methods of surgery. In 1906 he was the first to describe the use of the pectoralis minor muscle for breast reconstruction following mastectomy. He also introduced transscrotal orchiopexy for surgical repair of an undescended testis.

In 1907, after two fatal anesthetic accidents, Ombrédanne created a prototype of an inhaler as a safe anesthetic device. It consisted of a tin container as reservoir that was fitted with felt to absorb ether, a graduated air inlet, and a respiratory reserve chamber. This device was tested successfully on over 300 patients, and design modifications were later made.
In 1929 Ombrédanne provided an early description of malignant hyperthermia, a condition he described as pallor with hyperthermia in newborns during anesthesia. The disorder is historically referred to as "Ombrédanne syndrome".

Louis Xavier Édouard Léopold Ollier (French: [ɔlje]; 2 December 1830 – 26 November 1900) was a French surgeon, known for his pioneering work in reconstructive surgery and orthopedics.

Maximilian Oberst (October 6, 1849 – November 18, 1925) was a German physician and surgeon born in Regensburg.
He studied medicine in Munich, and from 1874 to 1877 was an assistant in the surgical department at a hospital in Augsburg. From 1877 he worked as an assistant to Richard von Volkmann at Halle, obtaining his habilitation in 1881. In 1884 became an assistant professor at the University of Halle, and from 1894 to 1920 was director and chief physician at the Krankenhaus Bergmannstrost in Halle. In 1919 he attained the title of professor ordinarius (full professor).
He is credited for introducing a method of block anesthesia ("Oberst-block") for use in minor surgery of the finger. In 1882 he published Die Amputationen unter dem Einflusse der antiseptischen Behandlung ("Amputations under the influence of antiseptic treatment").

Marcel Lermoyez (24 July 1858 – 1 February 1929) was a French otolaryngologist and surgeon who was a native of Cambrai.