The Rooke-Blathwayt letter book contains 18 letters that Admiral Sir George Rooke wrote in the early 18th century, as well as documents regarding the English Navy's actions in the English Channel and in the West Indies.
Rooke composed much of the correspondence while onboard the Triumph at Spithead, off the Isle of Wight. He addressed several different English officials, and the material in this volume was compiled by William Blathwayt, acting secretary of state. In his letters, Rooke confirmed the receipt of various orders and discussed developments around Brest, France, and other news of the fleet. An item entitled "A List of his Matys. Ships design'd on Service with Sr. George Rooke" provides the locations of English ships (July 10, 1701). The book has two sets of official instructions from King William about naval actions in the West Indies during the War of the Spanish Succession (August 12, 1701, and [September] 10, 1701). Two letters are in French: a letter from Count Wachtmeister, who was awaiting a rendezvous with George Rooke and the English fleet (June 19, 1700), and a letter about King William's confidence in George Rooke's military abilities (August 12, 1701).