Name, estimated year of birth, from 1851 England Census for Civil Parish of Werrington, Devon found in February 2023. John does not appear in the 1861 census, therefore estimate died “circa 1856”?

Details of 1851 England Census for Civil Parish of Werrington, Devon found in February 2023:
House: Coves Hill
John Turner, Head, 70, Farmer of 45 acres, Born Werrington, Devon, England [circa 1781]
Jane Turner, Wife, 58, Born Treneglos, Cornwall, England [circa 1793]
John Turner, Son, 31, Farmers son, Born Werrington, Devon, England [circa 1820]
Joannah Turner, Daughter, 28, Farmers daughter, Born Werrington, Devon, England [circa 1823]
William Turner, Son, 19, Farmers son Born Werrington, Devon, England [circa 1832]
Samuel Turner, Son, 17, Farmers son Born Werrington, Devon, England [circa 1834]
Elizabeth Turner, Daughter, 15, Farmers daughter, Born Werrington, Devon, England [circa 1836]
Margaret D Turner, Daughter, 12, Farmers daughter, Born Werrington, Devon, England [circa 1839]
Mary J Leev Granddaughter,10, Born Lezant, Cornwall, England [circa 1841]