Yount family Bible records and Ancestry.com Missouri Marriage Records 1805-2002 list the marriage of Matilda Castetter/Castator to Jacob Yount 9 April 1846 in Buchanan Co., Missouri. Jacob and Matilda Yount and family are listed in the 1850 and 1860 Census for Platte Co., MO under Jacob Yount and in the 1870 Census for the same location under Matilda Yount as Jacob died before 1870. From these Census records it appears that Matilda was born in Ohio about 1817.
Who are Matilda's parents? There does not appear to be any Castetter or Castator families listed in the 1840, 1850 or 1860 Census for either Buchanan or Platte Co., MO.