Hans Gerhard Creutzfeldt (June 2, 1885 – December 30, 1964) was a German neurologist and neuropathologist. Although he is typically credited as the physician to first describe the Creutzfeldt–Jakob disease, this has been disputed. He was born in Harburg an der Elbe and died in Munich.
Paul Emil Flechsig (29 June 1847, Zwickau, Kingdom of Saxony – 22 July 1929, Leipzig) was a German neuroanatomist, psychiatrist and neuropathologist. He is mainly remembered today for his research of myelinogenesis.
Alois Alzheimer ( ALTS-hy-mər, US also AHLTS-, AWLTS-, German: [ˈaːlɔɪs ˈʔaltshaɪmɐ]; 14 June 1864 – 19 December 1915) was a German psychiatrist and neuropathologist and a colleague of Emil Kraepelin. Alzheimer is credited with identifying the first published case of "presenile dementia", which Kraepelin would later identify as Alzheimer's disease.