Name, year (1803) and place (Kenwyn, Cornwall, England) of birth, provided by Sarah Ferguson (nee Churton) b. 1970.

Year of birth confirmed in 1841 England Census for Kenwyn, Cornwall, found in June 2018:
Thomas Jones 45 years of age Ag Lab [Places year of birth at circa 1796]
Jane 38 years [Places year of birth at circa 1803]
Charlotte 17 years [Places year of birth at circa 1824]
Maria 15 years [Places year of birth at circa 1826]
Catherine 5 years [Places year of birth at circa 1836]
Thomas 18 months [Places year of birth at circa 1840]
John 6 weeks [Places year of birth at circa 1841]

Date and place of death, date and place of marriage from research file30 in June 2018.

The 1851 England Census for Kenwyn, Cornwall, found in June 2018:
Thomas Jones 57 years of age Ag Lab [Places year of birth at circa 1794]
Jane 57 years [Places year of birth at circa 1794]
Maria 23 years [Places year of birth at circa 1828]
Catherine 15 years [Places year of birth at circa 1836]
John 10 years [Places year of birth at circa 1841]

For now, in June 2018, Brian of nzolivers.com is sticking with the 1841 census dates for year of birth.