This collection of letters from survivors of the Waterloo Campaign was gathered in the 1830s and 1840s when Captain William Siborne was trying to verify the chronological events of the day of the battle, to ensure the accuracy of his model diorama of Waterloo. Hundreds of replies from the people who had fought in the battle were sent to his circular letter requesting information, covering all aspects of the campaign, from the receipt of intelligence from the Allied outposts which sent a hasty concentration of troops towards the line of the French advance through all the stages of this momentous battle up to the final defeat of the French.