Notable : Famous : Founder/ originator

Roger Winfred Birkman (February 1, 1919 – March 26, 2014) was an American organizational psychologist. He was the creator of The Birkman Method, a workplace psychological assessment. Birkman received his Ph.D. in psychology in 1961 from the University of Texas at Austin. He was the founder and chairman of the board of Birkman International, Inc.

Théodore-Marin Tuffier, known as Théodore Tuffier (26 March 1857 – 27 October 1929) was a French surgeon. He was a pioneer of pulmonary and cardiovascular surgery and of spinal anaesthesia.

René Truhaut (May 23, 1909 – May 10, 1994) was a French toxicologist. He was made chairman of the department of toxicology at the Paris Faculty of Medicine. He is known for having introduced the concept of daily intake in 1956, and for coining the term "ecotoxicology" (in 1969) which defined it as "the branch of toxicology concerned with the study of toxic effects, caused by natural or synthetic pollutants, to the constituents of ecosystems, animal (including human), vegetable and microbial, in an integral context”.

Jean Baptiste Paulin Trolard (27 November 1842 in Sedan, Ardennes – 13 April 1910) was an anatomist known for his work on the anastomotic veins of the cerebral circulation. The "vein of Trolard" (the superior anastomotic vein) was named after him.He studied medicine at the Algiers Preparatory College of Medicine, afterwards working as a municipal physician in Saint Eugène, a suburb of Algiers. In 1861, he began work as an anatomy prosector at the college. From 1869 to 1910, he was a professor of anatomy at the Mustapha Pacha hospital Algiers.Known for his work against contagious diseases and epidemics, he was a proponent of free vaccinations for all indigent peoples. In 1882, he founded La Ligue de Reboisement in an effort to promote reforestation and prevent the deforestation of Algeria for the sake of creating pastureland. With Henri Soulié, he was co-founder of the Pasteur Institute of Algeria in 1894.

Melchior Treub (26 December 1851 – 3 October 1910) was a Dutch botanist. He worked at the Bogor Botanical Gardens in Buitenzorg on the island of Java, south of Batavia, Dutch East Indies, gaining renown for his work on tropical flora. He also founded the Bogor Agricultural Institute. He traveled and collected across many areas of Southeast Asia.
He was born in Voorschoten, and in 1873 he graduated in biology from the University of Leiden. Subsequently, he remained in Leiden as a botanical assistant. From 1880 to 1909 he was a botanist based in the Dutch East Indies.
In 1879 he was appointed a member of the Royal Dutch Academy of Sciences (KNAW) and was appointed as director of Bogor Botanical Gardens' Lands Plantentuin in Buitenzorg (Bogor) in the year 1880. Treub worked on tropical flora on Java and organized the Botanical Garden as a world-renowned scientific institution of botany. Under his leadership many crucial researches were successfully completed on plant diseases of economic crops.
In 1903 he established the Buitenzorg Landbouw Hogeschool, a school that later evolved into the Bogor Agricultural Institute. In 1905 he became director of the newly established Department of Agriculture in the Dutch East Indies. In 1907 Treub was the recipient of the Linnean Medal for his outstanding achievements in sciences. The Dutch "Society for the Promotion of the Physical Exploration of the Dutch Colonies" is sometimes referred to as the Treub Maatschappij.
As a botanical collector, he travelled throughout the Indies, and to the Philippines, Sri Lanka, Singapore and Penang. He was interested in plant morphology and physiology, and published treatises on the morphology of Balanophoraceae, Loranthaceae and Lycopodiaceae. He is credited for coining the term "protocorm" to describe the early stages in the germination of lycopods.He worked for nearly 30 years at the gardens before returning to the Netherlands in 1909 due to his worsening health. Dr. Treub then settled on the village of Saint-Raphael on French Riviera, where he died in 1910.