...ement reached me on transports. It was a brigade composed of six full regiments commanded by Colonel [John M.] Thayer, of Nebraska. As the gunboats were going around to Donelson by the Tennessee, Ohio and Cumberland rivers, I directed Thayer to turn about and go under their convoy. I started from Fort Henry with 15,000 men, including eight batteries and part of a regiment of cavalry, and, mee...