American entomologists

D. Elden Beck (April 11, 1906 – August 9, 1967) was a professor of zoology and entomology at Brigham Young University (BYU). Beck served as the chair beginning in 1962. Before his time at BYU, he served as the head of the Biology Department at Dixie Junior College. He served in the United States Army Medical Department from 1943 to 1945. Beck also helped develop mosquito control programs in Utah County and with the World Health Organization. His research led to the discovery of a new genus and five new species, along with multiple photographs in magazines and multiple collections in museums. In his personal life, he married Florence Robinson in 1933 and had four children. Beck died on August 9, 1967, at the age of 61.

Robert Lee Metcalf (November 13, 1916 – November 11, 1998) was an American entomologist, environmental toxicologist, and insect chemical ecologist.

Metcalf was noted for making environmentally safe pest control achievable.Metcalf was a member of the National Academy of Sciences,
a fellow of the American Academy of Arts and Sciences,
a member of National Research Council,
a fellow and president of the Entomological Society of America.
He was a member of Environmental Protection Agency's Pesticide Advisory Panel.
The National Center for Biotechnology Information called Metcalf "one of the leading entomologists of the 20th century".
The National Academies Press called him the twentieth century most influential entomologist.
The University of Florida called him "a brilliant scientist and educator".