1911 Encyclopædia Britannica, Volume 28… (1911)
“ From Helena to Port Hudson the Confederates maintained complete control of the Mississippi, the improvised fortresses of Vicksburg, Port Hudson and Arkansas Post (near the mouth of Arkansas river) being the framework of the defence. It was to be the task of Grant's army around Corinth and the flotilla at Memphis to break up this system of defences, and, by joining hands with Farragut and clearing the whole course of the Mississippi, to cut the Confederacy in half. ”
