The Wesley Pratt Larsen papers (1802-2005) contain materials from Larsen's career as a biologist, as well as research on Utah history. Publications by Wesley P. Larsen include works on Indian and pioneer medicine in Utah Territory, 1847-1900, Southern Utah tales, and James Dalley family history, v.3. Larsen earned a Ph. D. from the University of Utah in 1960. He was the associate program directory for the National Science Foundation. He was probably best known for his research on insect stem cells.