Note: Amos had died aged 54 years old in September 1868, leaving Mariah a widow in the 1870 census. Still on the farm, Mariah was keeping house while son John 20 years was farming. Columbus 18 years was helping with the farming, while Mary Ann 16 years assisted her mother. James was 13 years old. Maybe he was attending school.
Mariah was relatively well-off financially with $2,000 of real estate owned and $400 of personal property.