- 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 (b. 1844)
- 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 poet/physician/soldier, dies of pneumonia at 45
John McCrae
- Jan 31 Daniël de Lange, Dutch composer, dies at 76