- May 6 Emanuel Celler, American politician (Member of the U.S. House of Representatives from New York), born in Brooklyn, New York (d. 1981)
- May 9 Rolf de Maré, Swedish art collector and museum director, born in Stockholm (d. 1964)
- May 10 Max Steiner, Austrian-American film score composer (King Kong; Casablanca: Gone With The Wind), born in Vienna, Austria (d. 1971)
- May 11 Willis Augustus Lee, American World War II admiral (Guadalcanal) and sport shooter (5 Olympic golds 1920), born in Natlee, Kentucky (d. 1945)
- May 13 Inge Lehmann, Danish geophysicist and seismologist, born in Østerbro, Denmark (d. 1993)
- May 14 Miles Mander, British actor (Tower of London, Wuthering Heights, Murder!), born in Wolverhampton, Staffordshire, England (d. 1946)
- May 15 Jean Wahl, French philosopher (Sorbonne professor), born in Marseille, France (d. 1974)
- May 17 Selmer Jackson, American actor (The Grapes of Wrath, Life & Legend of Wyatt Earp), born in Lake Mills, Iowa (d. 1971)
- May 17 Tich Freeman, English cricket leg-spin bowler (12 Tests, 66 wickets; Kent CCC), born in Lewisham, England (d. 1965)
- May 21 May Aufderheide, American ragtime composer (Dusty Rag), born in Indianapolis, Indiana (d. 1972) [1]
- May 23 Adrian Roland Holst, Dutch poet (Raged & Tired), born in Amsterdam, Netherlands (d. 1976)
- May 23 Zack Wheat, American Baseball Hall of Fame outfielder (NL batting champion 1918; Brooklyn Superbas / Dodgers / Robins 1909–26), born in Hamilton, Missouri (d. 1972)
- May 25 Miles Malleson, British stage and screen actor, and writer (Kind Hearts and Coronets; Postman's Knock), born in Croydon, Surrey, England (d. 1969)
- May 27 Louis Durey, French composer, born in Paris (d. 1979)
- May 30 James A. Farley, American politician (ran Franklin Roosevelt's presidential campaign, US Postmaster General 1932-38), born in Grassy Point New York (d. 1976)
- May 31 Jack Holt, American golddigger and actor (Cat People, San Francisco, Brimstone), born in NYC, New York (d. 1951)