...of Fort Henry, I took my staff and the cavalry — a part of one regiment and made a reconnaissance to within about a mile of the outer line of works at Donelson. I had known General Pillow in Mexico , and judged that with any force, no matter how small, I could march up to within gunshot of any intrenchments he was given to hold. I said this to the officers of my staff at the time. I knew tha...