Her death certificate records Mary Jane Jones, age 88 years 11 months 14 days, born 9 Oct 1850 in Harrison Co., Ky, died 23 Sep 1939 in Harrison Co., Ky, widow of Wm A. Jones, father James M. Jones, mother’s maiden name Lucresa Bryant, both born in Harrison Co., Ky, cause of death chronic myocarditis, informant J. W. Jones, Berry, Ky.

Either the birthdate is wrong by a year here, and she is the daughter listed as Mary age 1 in the 1850 census, or she is the daughter listed as Sarah J. age 10 in the 1860 census. (Possibly both are true.)