- Mar 1 Donald Keith Falkner, singer
- Mar 2 Kurt J Weill, German composer/Bertolt Brecht collaborator (Mahogany), born in Dessau, Germany
- Mar 7 Evald Aav, Estonian composer (Vikerlased), born in Tallinn (d. 1939) [OS 22 Feb]
- Mar 12 Zoltán Vásárhelyi, Hungarian violinist, teacher, and choral conductor, born in Kecskemét, Hungary (d. 1977)
- Mar 15 Colin McPhee, Canadian composer (H2O, Mechanical Principles) and musicologist (Bali), born in Montreal, Quebec (d. 1964)
- Mar 17 Alfred Newman, composer (Love is a Many Splendored Thing), born in New Haven, Connecticut
- Mar 21 Paul Klecki/Kletzki, Polish violinist/composer/conductor
- Mar 23 Jose Antonio Calcano, composer
- Mar 24 June [Algeria Junius] Clark, musician trumpet
- Mar 26 Isadore Freed, Russian American composer, born in Brest-Litovsk, Russia (d. 1960)
- Mar 28 Achille Longo, Italian composer, born in Naples, Italy (d. 1954)
About March 1900
How Old? 120 or 121 years old
Generation: Lost Generation
Leap Year: No