Rolt was born in Shrewsbury, probably in 1725, and died in London on 2 March 1770. His first employment was in a minor post as an excise officer in the north of England, which he held until 1745. He then decided, for reasons unknown, to join the invading Jacobite army under Prince Charles Stewart. Rolt was dismissed from his post and spent several years living in Dublin, but he suffered no further penalites and his patrons eventually enabled him to return to England. He then made a somewhat precarious living as a writer. He became a minor member of the Drury Lane set, composing music and poems which were incorporated into plays, and also wrote a number of histories including a four-volume history of the War of the Austrian Succession and a history of South America; at the time of his death he was working on a major history of British North America.
From The Biographical Dictionary of British Economists in Oxford Reference.