Mark A. Plummer1929–2021CronologiaBirth1 Jun 1929, SenecaDeath9 Nov 2021, Sun CityProfessioneacademicProfessioneuniversity teacherProfessioneresearcherProfessionehistorianProfessioneprofessorImpiegoIllinois State UniversityBiografiaUnited States history professorFontiviaf 53167243lccn n86049043wikidata Q108061961