Gregor Mendel
Jan 6 Gregor Mendel, Austrian monk and geneticist (discoverer of laws of heredity), dies at 61
- Jan 6 Paul Taglioni, "the Great," Italian Austrian choreographer, dies at 75
- Jan 17 Hermann Schlegel, German ornithologist, dies at 79
- Jan 21 Auguste Franchomme, French cellist and composer, dies at 75
- Jan 24 Johann Christian Gebauer, Danish composer, dies at 75
- Jan 26 John Letcher, American lawyer and politician, U.S. House of Representatives from Virginia, dies at 70