Wednesday, April 15. On the Mississippi River, General Ulysses S. Grant’s Federals continued moving from Milliken’s Bend to below the Confederate stronghold at Vicksburg, skirmishing with Confederates along the way. In North Carolina, Confederates abandoned a siege of Washington when Federal reinforcements approached.
Off Brazil, the Confederate commerce raider C.S.S. Alabama captured two U.S. whalers. President Abraham Lincoln wrote to General Joseph Hooker, commanding the Federal Army of the Potomac, that he was concerned about the Federal cavalry’s slowness along the Rappahannock River in northern Virginia. Skirmishing occurred in Virginia, Tennessee, and Louisiana.
Thursday, April 16. On the Mississippi River, a Federal naval flotilla of 12 ships under Admiral David D. Porter passed the Confederate batteries at Vicksburg and landed downriver near New Carthage. All but one of the vessels made it through, despite taking several hits from the Confederate cannon. This was part of Ulysses S. Grant’s bold plan to capture Vicksburg by crossing his 44,000 troops to the west bank of the Mississippi, marching them southward past the town, then recrossing the river to take Vicksburg from behind.
Confederate President Jefferson Davis signed a bill into law authorizing army commissions for minors. Skirmishing occurred in Virginia, North Carolina, Tennessee, Kentucky, and Louisiana.
Friday, April 17. Ulysses S. Grant dispatched Federal cavalry under Colonel Benjamin H. Grierson to raid northern Mississippi and southern Tennessee. This sought to divert Confederates from Grant’s plan to capture Vicksburg. Grierson and 1,700 cavalrymen left La Grange, Tennessee and moved into northern Mississippi.
Confederates under General John S. Marmaduke invaded Missouri from Arkansas. Skirmishing occurred in Virginia, Tennessee, Alabama, Louisiana, and Missouri.
Saturday, April 18. President Davis approved a law creating a volunteer navy in which individuals could purchase and fit out private vessels that would operate against Federal ships for prize money. The volunteer navy measure was not implemented.
In Mississippi, Benjamin Grierson’s Federals skirmished at New Albany. In Louisiana, Federals destroyed a Confederate salt works near New Iberia. Skirmishing occurred in Missouri, Arkansas, and Texas.
Sunday, April 19. President Lincoln, Secretary of War Edwin Stanton, and General-in-Chief Henry Halleck traveled to Aquia Creek in northern Virginia on a one-day trip to discuss military issues. In Mississippi, Benjamin Grierson’s Federals skirmished at Pontotoc. Other skirmishing occurred in Virginia, North Carolina, Kentucky, Alabama, and Missouri.
Monday, April 20. President Lincoln issued a proclamation stating that West Virginia, having been granted statehood by Congress the previous December, would officially join the Union on June 20, the two-year anniversary of when western Virginia voters chose to secede from the rest of the state.
In Louisiana, Federals captured Opelousas, Washington, and Butte-a-la-Rose. In Missouri, John Marmaduke’s Confederates skirmished at Patterson. Other skirmishing occurred in Virginia, North Carolina, western Virginia, and Tennessee.
Tuesday, April 21. In western Virginia, General William E. Jones’s Confederates raided the Baltimore & Ohio Railroad. Skirmishing occurred in Missouri, Mississippi, and Louisiana.
Primary Source: The Civil War Day by Day by E.B. Long and Barbara Long (New York, NY: Da Capo Press, Inc., 1971)