21. To Prince Ferdinand of Brunswich, this plan of the battle of Thonhausen ... by William Roy, captain Published / Created: 1760 Call Number: 36hc M66 1756 Container / Volume: BRBL_00134 Image Count: 3 Resource Type: Maps, Atlases & Globes Found in: Beinecke Rare Book and Manuscript Library > To Prince Ferdinand of Brunswich, this plan of the battle of Thonhausen ... by William Roy, captain of engineers, & assistant quatermaster general of the British forces. Surveyed & drawn by Capt. William Roy. Engraved by Thos: Major.