Whom it may concern. Washington, February 11, 1863.
Major General Butler, bearer of this, visits the Mississippi River, and localities thereon, at my request, for observation. The Military and Naval Commanders, whom he may meet, will please facilitate his passage from point to point, and make him as comfortable as possible during his stay with them respectively. I will thank them also to impart to him such information as they may possess, and he may seek, not inconsistent with the military service.
A. LINCOLN