This request arrested me in my fictional progress. I was tempted to accept this commission, not merely because of the editor's generous terms of payment but for the deeper reason that _Grant_ was a word of epic significance in my mind. From the time when I was three years of age, this great name had rung in my ears like the sound of a mellow bell. I knew I could write Grant's story--but--I hesitated. "It is a mighty theme," I replied, "and yet I am not sure that I ought to give so much of my time at this, the most creative period of my life. It may change the whole current of my imagination." My father, whose attitude toward the great Commander held much of hero-worship and who had influenced my childish thinking, influenced me now, but aside from his instruction I had come to consider Grant's career more marvelous than that of any other American both by reason of its wide arc of experience and its violent dramatic contrasts. It lent itself to epic treatment. With a feeling that if I could put this deeply significant and distinctively American story into a readable volume, I should be adding something to American literature as well as to my own life, I consented. Dropping my fictional plans for the time I became the historian. In order to make the biography a study from first-hand material I planned a series of inspirational trips which filled in a large part of '96. Beginning at Georgetown, Ohio, where I found several of Grant's boyhood playmates, I visited Ripley, where he went to school, and then at the Academy at West Point I spent several days examining the records. In addition, I went to each of the barracks at which young Grant had been stationed. Sacketts Harbor, Detroit and St. Louis yielded their traditions. A month in Mexico enabled me to trace out on foot not only the battle grounds of Monterey, but that of Vera Cruz, Puebla and Molina del Rey. No spot on which Grant had lived long enough to leave a definite impression was neglected. In this work I had the support of William Dean Howells who insisted on my doing the book bravely. In pursuit of material concerning Grant's later life I interviewed scores of his old neighbors in Springfield and Galena, and in pursuit of his classmates, men like Buckner and Longstreet and Wright and Franklin, I took long journeys. In short I spared no pains to give my material a first-hand quality, and in doing this I traveled nearly thirty thousand miles, making many interesting acquaintances, in more than half the states of the Union.