Scott Joplin
Apr 1 Scott Joplin, American ragtime composer (The Entertainer, Maple Leaf Rag), dies at 48
- Apr 2 Bryn Lewis, Welsh rugby union winger (2 caps; Newport, Cambridge University), dies on active duty in WWI at 26
- Apr 3 Arthur Graeme West, British writer and war poet (The Diary of a Dead Officer), killed by a sniper at about 25
- Apr 7 Spyridon Filiskos Samaras, Greek composer, dies at 53
- Apr 9 Edward Thomas, poet, killed in WW I
- Apr 9 James Hope Moulton, British scholar of Classical Greek (b. 1863)
- Apr 14 L. L. Zamenhof, Polish physician and linguist (Esperanto), dies at 57
- Apr 18 Moritz von Bissing, Prussian general, dies at 73
- Apr 18 Vladimir Serbsky, Russian psychiatrist, dies at 59
- Apr 24 Oskar Blumenthal, German playwright and critic, dies at 65