...red steam-boats of great power, and the newly (and rather badly) constructed boats, Chillicothe, Indianola, and Tuscumbia. On the 21st of November Porter issued orders from Cairo to Captain Henry Walke , then in command of the gun-boats patrolling the river below Helena, to enter the Yazoo and destroy the batteries as far up as possible. Accordingly, on the 11th of December the Marmora and Signal ...