- Apr 7 Diederich Krug, German pianist and composer (Le petit Chevalier), dies at 60
- Apr 7 Isaac M. St. John, American Brigadier General (Confederate Army), dies at 52
- Apr 13 Robert Fortune, Scottish botanist, dies at 67
- Apr 23 Raden Saleh [Raden Saleh Sjarif Boestaman], Indonesian romantic painter, dies at about 69