The final years before Parliament acted. George Moore's Letter Books recorded a cosmopolitan trading world operating from Bridge House in Castletown. The family networks — Moore, Quayle, Taubman, Christian — wove together commerce, governance, and community. The Keys passed their resolution. Hugh Cosnahan carried the deputation to London. The Whitehaven merchants petitioned Westminster. Parliament moved to protect East India Company revenues. The Isle of Man Purchase Act received Royal Assent on 10 May 1765.