The following two weeks saw a series of events that brought the war to its dramatic climax , including the surrender of Confederate General Robert E. Lee to Union General Ulysses S. Grant on April 9 and the assassination of U.S. President Abraham Lincoln on April 14 . As a result , the '' General Lyon '' disaster was overshadowed by larger historical events and an investigation into the cause of the tragedy was never carried out
assassination
Assassination of Abraham Lincoln
General Lyon