Oliver Wendell Holmes Jr (1841-1935)
Mar 6 US 59th Supreme Court justice (1902-32), dies of pneumonia at 93
- Mar 8 Ruan Lingyu [Fenggen], Chinese silent film actress (The Goddess), commits suicide at 24
- Mar 10 Barend Barendse, Dutch actor and director (Heilig recht), dies at 82
- Mar 12 Mihajlo "Micheal" Pupin, Serbian-American physicist and telephone pioneer, dies at 76
- Mar 16 Aron Nimzowitsch, Latvian-born chess player (b. 1886)
- Mar 16 John Macleod, Scottish-Canadian physiologist (Nobel 1923), dies at 58
- Mar 23 Florence Moore, American vaudeville, stage and silent screen actress, dies of cancer at 48
- Mar 30 Romanos Melik'yan, Armenian composer, dies at 51