Rolt, the London lawyer who prepared George Moore's Treasury case in 1766, and afterwards a historian of the Island.

Moore engaged him during the deputations that followed the Revestment and was disappointed in what he got. The document Rolt produced dwelt on the prerogatives of the Lord rather than on the rights of the people, which was not the case Moore had gone to London to argue.

His History of the Isle of Man came out in 1773, and Manx writers have used it warily ever since. He is cited on the fate of the Island's records, stating that after the capture of the Countess of Derby her house was plundered of its goods and plate, a passage the Manx Society editors set beside Seacome's account that the few records remaining on the Island at the outbreak of the civil wars were carried away by Charlotte, Countess of Derby. On another point they correct him outright: there is no truth, they say, in the statement made by Seacome, Rolt and others that the Countess was kept long confined in Castle Rushen by order of Receiver Christian.

He is a standard eighteenth-century authority on the Island all the same, named with Seacome as a writer whom later editors quote in order to disagree with him.