Karl Patterson Schmidt was an American herpetologist. From 1916 to 1922, he worked as scientific assistant in herpetology at the American Museum of Natural History in New York, under the American herpetologists Mary Cynthia Dickerson and Gladwyn K Noble. He made his first collecting expedition to Puerto Rico in 1919, then became the assistant curator of reptiles and amphibians at the Field Museum of Natural History in Chicago in 1922. From 1923 to 1934, he made several collecting expeditions for that museum to Central and South America, which took him to Honduras, Brazil and Guatemala. In 1937, he became the editor of the herpetology and ichthyology journal Copeia, a post he occupied until 1949. He became the chief curator of zoology at the Field Museum in 1941, where he remained until his retirement in 1955. From 1942 to 1946, he was the president of the American Society of Ichthyologists and Herpetologists. In 1953, he made his last expedition, which was to Israel
Malcolm Arthur Smith was a herpetologist and physician working in the Malay Peninsula. Smith went on to become the physician in the royal court of Siam and was a doctor to the royal family. He published his observations on the reptiles and amphibians during his stint there and was in regular correspondence with Boulenger at the Natural History Museum in London. He left in 1925 to continue his studies at the museum in London. He was the founder and president of the British Herpetological Society
Franz Werner was an Austrian zoologist and explorer. Specialising as a herpetologist and entomologist, Werner described numerous species and other taxa of frogs, snakes, insects and other organisms
Gaston-Francois de Witte was a Belgian herpetologist who discovered and described at least 24 different species of reptiles. During his career, he was associated with the Royal Museum for Central Africa in Tervuren and the Museum of Natural Sciences. He was best known for his research of amphibians and reptiles found in the Belgian Congo, from where he collected thousands of specimens. While in central Africa, he also collected botanical specimens