Illinois

April 22, 1861.   Cairo, IL:   State troops garrison the city, an important gateway near the Ohio and Mississippi Rivers that is valuable to the Union for an invasion of the Confederacy and defense against a Confederate invasion of the Union. ^{Long 64}

April 25, 1861.   St. Louis, MO:   Capt. James H. Stokes of Chicago, IL, told to get arms for Illinois militia, takes a steam from Alton late at night and secretly remove 10,000 muskets from the St. Louis arsenal for use and returns to Alton the next morning. ^{Long 65}

April 26, 1861.   Washington:   Brig. Gen. Edwin Vose Sumner assumes command of the U. S. Army Department of the Pacific, replacing Albert Sidney Johnston, who resigned to join the Confederate Army as a full General in command of a Department encompassing a large part of the western Confederacy. ^{Long 66}