the rest of his Pontypool estate. The observations included details of the production costs of iron and "Pontpoole plates". Edward Lhwyd in 1697 described the process for making these as involving a rolling mill. Hanbury's Observations do not include tin among the costs, which suggests that his Pontypool plates were blackplate (plates of iron), not tinplate. This is confirmed by its being sold by the ton, not by the box. This may be to prevent the plates rusting that Thomas Allgood, one of Hanbury's managers, began japanning plates as "Pontypool japan". However, the concept of rolling plate iron was probably brought to Pontypool by Thomas Cooke, probably the son of Thomas Cooke, who had worked at Wolverley for Andrew Yarranton, who found out how to produce tinplate by visiting Saxony. The first production of tinplate at Pontypool seems to date from 1725, when this commodity first appears in the Gloucester Port Books. This immediately follows the first appearance (in French of Réaumur's Principes de l'art de fer-blanc), but prior to a report of it being published in England – millfounded a rolling mill and started a tinplating industry. Hanbury can thus properly be claimed as the progenitor of the British tinplate industry. Personal life and death In 1701, he married Albina, daughter of William Selwyn and Albinia daughter of Richard Betenson, and began to enlarge Park House in Pontypool, a property begun by his father in 1659. In July 1703, he married Bridget Ayscough, eldest daughter of Sir Edward Ayscough of Stallingborough and South Kelsey. With his marriage to Bridget came a fortune of £10,000 and connections with established political families. Bridget was a close friend of Sarah Churchill, Duchess of Marlborough and Hanbury was introduced to influential politicians. Together, they were the parents of: John Hanbury of Caerleon, Monmouthshire (1705–1739) dsp. Capel Hanbury (1707–1765) MP Sir Charles Hanbury (1708–1759) KB, who later took the surname Hanbury-Williams of Coldbrook Park. George Hanbury of Coldbrook Park (1715–1764) Thomas Hanbury, Commander, Royal Navy (1722–1778) And others (dsp) Hanbury died in 1734. References 1664 births 1734 deaths English businesspeople British ironmasters Members of the Parliament of Great Britain for Welsh constituencies British MPs 1722–1727 British MPs 1727–1734 Members of the Parliament of England (pre-1707) for Gloucester English MPs 1701–1702 English MPs 1702–1705 English MPs 1705–1707 Whig members of the Parliament of Great Britain