... Banks's march from Alexandria, had arrived.and made the investment of the fort complete, for Admiral Farragut, with the Hartford, Albatross, and one or, two other gunboats above Port Hudson, and the Monongahela , Richmond, Essex, and Genesee, with mortar-boats under Commander C. H. B. Caldwell, below, held the river, and were shelling the Confederate works at intervals, day and night. Banks was informed ...