Which Irish poet lived from 1865 to 1939?

In 1862, Lincoln removed which general as commander of the Army of the Potomac? The 1862 Second Battle of Bull Run was part of which war? Which 1863 document declared that "all persons held as slaves" within rebel states "shall be then, thenceforward, and f… Which author wrote the 1863 novel "Five Weeks in a Balloon"? In 1865, Robert E. Lee surrendered at which Virginia site? Which Union general led the 1865 march through the Carolinas after his "March to the Sea"? In April 1865, Jefferson Davis and most of his cabinet fled which capital city? Who reportedly shouted "Sic semper tyrannis! The South is avenged!" in 1865?