The posted death date was calculated from the gravestone inscriptionbu t family listings give his death date as 5/30/1866. Both datesconflic t with a marriage date of 1868.
The stone is inscribed:
"Zachary T son of ? C & N.J. Berry
Nov 1, 1818-May 30, 18?? (Birth date was 1848)
Aged 18 yr 6 mo 29 das