A letter from Daniel Mylrea, likely a senior administrator on the Isle of Man, to the Duke of Atholl dated 1 August 1764. Mylrea reports having communicated the Duke's reassuring intentions to merchants in Douglas, Peel, and Ramsey, indicating that commercial anxiety about political change has been alleviated. He notes plans for a collection at Douglas with the Comptroller and promises remittance of revenues to the Duke. The letter provides insight into merchant concerns during the period leading up to the 1765 Revestment and the Duke's efforts to maintain commercial confidence.