Her death certificate records Pearly Evaline Cox, age 11 months 26 days, born 23 Sep 1930 near Portageville, Missouri, died 19 Sep 1931 in Portage township, New Madrid Co., Missouri, father Richard A. Cox, born in Kentucky, mother Pearly Duffendall, born in Missouri, cause of death pertussis, informant S. Daniels, Portageville, Mo.