Jacob Moleschott (9 August 1822 – 20 May 1893) was a Dutch physiologist and writer on dietetics. He is known for his philosophical views in regard to scientific materialism. He was a member of German Academy of Sciences Leopoldina (since 1884).
Franciscus (Franz) Cornelius Donders FRS FRSE (27 May 1818 – 24 March 1889) was a Dutch ophthalmologist. During his career, he was a professor of physiology in Utrecht, and was internationally regarded as an authority on eye diseases, directing the Netherlands Hospital for Eye Patients. Along with Graefe and Helmholtz, he was one of the primary founders of scientific ophthalmology.