- Jan 1 William Wilfred Campbell, Canadian poet (Beyond the Hills of Dream, Ian of the Orcades), dies of pneumonia at 57
- Jan 2 Sybe Kornelis Bakker, Dutch Christian socialist & reformed preacher, dies at 42
- Jan 6 Georg F L P Cantor, German mathematician: collection, dies at 72
- Jan 7 Julius Wellhausen, German biblical scholar (analysis of the structure and dating of the Pentateuch), dies at 73
- Jan 8 Ellis H. Roberts, American politician (b. 1827)
- Jan 9 Émile Reynaud, French scientist (invented 1st animated images), dies at 73
- Jan 18 Bohuslav Jeremiáš, Czech composer, dies at 58
- Jan 24 George Arthur Crump, Founder of the Pine Valley Golf Club in Clementon NJ (b. 1871)
John McCrae
Jan 28 John McCrae, Canadian physician, soldier and poet (In Flanders Fields), dies of pneumonia at 45
- Jan 31 Daniël de Lange, Dutch composer, dies at 76