Mark A. Plummer1929–2021ChronologieBirth1 Jun 1929, SenecaDeath9 Nov 2021, Sun CityProfessionacademicProfessionuniversity teacherProfessionresearcherProfessionhistorianProfessionprofessorEmploiIllinois State UniversityBiographieUnited States history professorSourcesviaf 53167243lccn n86049043wikidata Q108061961