Hanbury was the son of Thomas Hanbury of Buriton,[2] Auditor of the Exchequer and his wife Blanche née Bowyer. He was educated at Hart Hall, Oxford. He bought the Letters Patent for Petersfield in 1599.[3]
'Report of the case of the borough of Petersfield in the County of Southampton, tried and determined by two select committees of the House of Commons in 1820/21': London; Thomas Davison; 1821