Emil Post's father was Arnold Post and his mother was Pearl Post. Arnold and Pearl were Polish Jews and their son Emil was born in Russian controlled Poland and spent the first seven years of his life there.
Emil Post 's ama ay Arnold Post at ang kanyang ina ay Pearl Post. Arnold at Pearl ay Polish Judio at ng kanilang mga anak na lalaki Emil ay ipinanganak sa Russian kontrolado Poland at ginugol ang unang pitong taon ng kanyang buhay doon.