Name, estimated year of birth as circa 1832, place of birth as "Devon, England" from 1841 England Census for Civil Parish of Pyworthy, Holsworthy, Devon. A link to this was received from Katia, wife of Tim Grant Oliver, in an email dated 19 December 2022:
John Oliver, M, age 9, Born Devon England [circa 1832]

For full family details of the above Census, please see personal page of either parent.