Vocation : Medical : Veterinarian

Gaston Ramon (30 September 1886 – 8 June 1963) was a French veterinarian and biologist best known for his role in the treatment of diphtheria and tetanus.
He was born in Bellechaume (Yonne, France) and attended l'École vétérinaire d'Alfort from 1906 to 1910. In 1917 he married Marthe Momont, grandniece of Emile Roux.
During the 1920s, Ramon, along with P. Descombey, made major contributions to the development of effective vaccines for both diphtheria and tetanus. In particular, he developed a method for inactivating the diphtheria toxin and the tetanus toxin using formaldehyde which, in its essentials, is still used in vaccines manufactured today. He also developed a method for determining the potency of the vaccines, an essential element required for the reproducible production of these pharmaceuticals.
He received 155 Nobel Prize Nominations but never received the prize.A collection of his papers is held at the National Library of Medicine in Bethesda, Maryland.

Louis-Joseph Alcide Railliet (also known as Alcide Railliet, born 11 March 1852 at La Neuville-lès-Wasigny in the Ardennes – died 25 December 1930) was a French veterinarian and helminthologist.
Professor at the Veterinary School of Alfort, he is considered one of the founders of modern parasitology and wrote several books of veterinary parasitology. He chaired the Société zoologique de France in 1891. He was a member of the French Académie Nationale de Médecine, from 29 December 1896 to his death. He received the Legion of Honor.

Jean Pierre Mégnin (16 January 1828 – 31 December 1905) was a French army veterinarian and entomologist. He is best known for his work with dogs in the field of cynology. He also contributed to the field of forensic entomology. He led experiments which unveiled the eight distinct waves of insect succession on corpses exposed to air. Similarly, he showed two waves of insect succession on corpses that are buried.

Pierre-Victor or Pierre Victor Galtier ((1846-10-15)15 October 1846 – (1908-04-24)24 April 1908) was a veterinarian and professor at the National Veterinary School of Lyon, specialising in pathology of infectious diseases, health surveillance and commercial and medical legislation. He developed a rabies vaccine which had some experimental success in laboratory animals.