Jan 18 1863. I have arrived at Napoleon Ark., and I am ready to begin the expedition to Vicksburg. I sent a telegram to Gen. Halleck,
Major General H. W. HALLECK, General-in-Chief:
McClernand’s command is at this place; will move down the river to-day. Should Banks pass Port Hudson this force will be ready to cooperate on Vicksburg at any time. What may be necessary to reduce the place I do not yet know, but since the late rains think our troops must get below the city to be used effectively.
U. S. GRANT,
The Papers of Ulysses S Grant, Vol 7, p 231
O.R., I, xvii, part 2, p 573