- Apr 1 Andreas Aschenbach, German painter/engraver, dies at 94
- Apr 2 Boyd Alexander, English explorer and ornithologist (Niger to the Nile), murdered in a dispute with locals in Africa at 37
- Apr 2 Friedrich von Bodelschwingh, German theologist (founded institutions, including a bank, to help the poor), dies at 79
- Apr 5 Charles Follis "The Black Cyclone", American football halfback (1st black pro player Shelby Blues 1902-06), dies of pneumonia at 31
- Apr 12 William Graham Sumner, American sociologist (Folkways), dies at 69
- Apr 13 William Orchardson, British painter, dies at 78
- Apr 14 Mikhail Vrubel, Russian painter (b. 1856)
- Apr 17 Ignacio Mariscal, Mexican lawyer and diplomat (Secretary of Foreign Affairs), dies at 80
- Apr 20 Samuel Gibbs French, American Major General (Confederate Army), dies at 91
Mark Twain (1835-1910)
Apr 21 American author (Adventures of Huckleberry Finn, The Adventures of Tom Sawyer), dies at 74
- Apr 26 Bjørnstjerne Bjørnson, Norwegian author "Pa Guds Veje" and Nobel laureate 1903, dies at 77
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide