- Mar 1 Alaska P. Davidson, America's first female FBI agent, born in Warren, Ohio (d. 1934)
- Mar 3 Alain [Emile-Auguste Chartier], French philosopher and writer, born in Mortagne-au-Perche, France (d. 1951)
- Mar 5 Prosper Poullet, Belgian politician (Prime Minister of Belgium 1925-26), born in Leuven, Belgium (d. 1937)
- Mar 15 Grace Chisholm Young, English mathematician (d. 1944)
- Mar 18 Maude Abbott, Canadian physician (world expert on congenital heart disease), born in St Andrews East, Quebec (d. 1940) [1]
- Mar 22 Hamish MacCunn, Scottish composer (The Land of the Mountain and the Flood), and teacher, born in Greenock, Scotland (d. 1916)
Robert A. Millikan (1868-1953)
Mar 22 American physicist (photoelectric effect; Nobel 1923), born in Morrison, Illinois
- Mar 23 Dietrich Eckart, early supporter of Adolf Hitler's Nazi Party and member of Thule Society (d. 1923)
- Mar 25 Bill Lockwood, English cricket fast bowler (12 Tests, 43 wickets, BB 7/71, 1 x 50; Surrey CCC), born in Nottingham, England (d. 1932)
- Mar 26 Fuʾād I [Aḥmad Fuʾād Pasha], King of Egypt (1922-36), born in Cairo, Egypt (d. 1936)
- Mar 27 Patty Smith Hill, American composer, teacher and songwriter ("Happy Birthday To You"), born in Anchorage, Kentucky (d. 1946)
- Mar 28 Cuno Amiet, Swiss painter and illustrator, born in Solothurn, Switzerland (d. 1961)
Maxim Gorky (1868-1936)
Mar 28 Russian playwright and author (Mother and The Lower Depths), born in Nizhny Novgorod, Russia
- Mar 28 Wojciech Gawroński, Polish pianist and composer, born in Sejmany, Russian Empire (now Lithuania) (d. 1910)
- Mar 29 Obe Postma, Frisian poet (Fan wjerklank en bisinnen / Of resonance and reflection), naturalist, and historian, born in Cornwerd, Netherlands (d. 1963)
- Mar 31 Karl Bonhoeffer, German psychiatrist and neurologist (resisted Nazi's Aktion T4 extermination campaign), born in Neresheim, Württemberg (d. 1948)