Gurwood was also busy in the summer of 1842 helping Lord Francis Egerton with an article reviewing a life of Marshall Blucher, and then assisting the Duke with his Memorandum on Waterloo. A large part of Lord Francis's article was concerned with criticisms of the Duke's disposition of his troops at Waterloo made in Sir Archibald Alison's "History of Europe". On reading a draft of the article the Duke, who had for many years resisted pressure to write his own account, sat down immediately and wrote a short memorandum with the aim of making Alison out to be 'a damned rascally Frenchman.' In September 1842 after reading Clausewitz'a "Campaign of 1815" he wrote a second, longer Memorandum. He sent it to Gurwood saying that it needed revision and Gurwood made a number of editorial suggestions. The Duke made it very clear that it had not been written for publication.