The Personal Memoirs are the autobiography of Ulysses S. Grant, written in his last year as cancer was killing him and as a business failure had left his family in debt. In the preface he explains that he had long refused to write his memoirs and took up the work partly for the income, aiming to do justice to both the National and Confederate sides and to verify every statement of fact from the records.
The first volume covers his ancestry, his Ohio boyhood, his reluctant years at West Point, and his service in the Mexican War. Grant records the campaigns of Taylor and Scott in close detail while stating plainly that he regarded the war itself as unjust, an instance of a republic following the bad example of European monarchies in seizing territory. After the war he marries, serves on the Pacific coast, resigns, and struggles in civilian life until the rebellion calls him back.
Most of the book is the Civil War seen from Grant's own command. He moves from colonel of an Illinois regiment to the victories at Fort Henry and Fort Donelson, where his demand for unconditional surrender first makes his name, through the bloody surprise at Shiloh, the long Vicksburg campaign that splits the Confederacy, and the relief of Chattanooga. Throughout, he explains his reasoning, supply problems, and the conduct of the men under him.
Promoted to general-in-chief, Grant takes the Eastern war directly against Lee. The Wilderness, Spotsylvania, and the grinding move toward Petersburg are costly, and he reports both his heavy losses and his resolve to fight it out on that line if it takes all summer. The narrative builds to the meeting at Appomattox Court House, which he describes with restraint, noting his own sadness at the surrender of a foe who had fought so long and valiantly.
A short conclusion steps back from the campaigns. Grant attributes the war squarely to slavery, judges that it was probably well the country had the war when it did, and argues that to keep peace a nation must be prepared for war. He ends on the hope of reconciliation between North and South, closing the book of a soldier who saw two wars and trusted the plain record over his own reputation.