- January 28, 1900 - Mahlon Merrick (aka: Gene LeGrande) (born Mahlon Legrand Merrick) in Farmington, Iowa
- February 20, 1900 - Amadeo De Filippi born in Ariano Irpino, Avellino, Italy
- March 27, 1900 - Jack Beaver [born John ("Jack") Beauer] in Clapham, London, England, UK
- August 28, 1900 - Rudy Schrager (born Rudolph Noachim Schrager) in Czernowitz, Bukovina, Austria-Hungary
- December 17, 1900 - Norman Cloutier (Norman Louis Cloutier) born in Hartford, Connecticut
- December 30, 1900 - Joe Dubin (Joseph Simon Dubin) born in Philadelphia, Pennsylvania
- August 8, 1900 - Victor Young born in Chicago, Illinois
- 1901 - Bob Busby (aka: Robert Busby) born in Maidenhead, Berkshire, England, UK
- March 17, 1901 - Alfred Newman born in New Haven, Connecticut
- May 24, 1901 - Lucien Moraweck (Lucien Alfred E. Moraweck) born in Belfort, Franche-Comté, France
- May 31, 1901 - Alfredo Antonini (Alfredo A. Antonini) born in Milan, Italy
- July 14, 1901 - William Meeder (aka: Bill Meeder) (William Henry Meeder Sr.) born in West Orange, New Jersey
- July 28, 1901 - Felix Mills (born Gordon R. Mills) in Fort Collins, Colorado
- August 30, 1901 - Conrad Salinger born in Brookline, Massachusetts
- September 15, 1901 - Romelle Fay (Romelle Fay Alford Mekar) born in Elroy, Wisconsin
- September 16, 1901 - Roger Barsotti born in London, England, UK
- October 20, 1901 - Frank Churchill (Frank Edwin Churchill) born in Rumford, Maine
- December 23, 1901 - André Kostelanetz (Abram Naumovych Kostelanetz) born in St. Petersburg, Russia
- 1902 - Ken Warner (born Onslow Boyden Waldo Warner) in Chiswick, London, England, UK
- May 24, 1902 - Wilbur J. Hatch born in Mokena, Illinois
- June 2, 1902 - Rosa Rio (born Elizabeth Raub) in New Orleans, Louisiana
- June 18, 1902 - Louis Alter born in Haverhill, Massachusetts
- June 28, 1902 - Richard Rodgers (Richard Charles Rodgers) born in New York City, New York
- August 3, 1902 - Ray Bloch (Raymond Arthur Bloch) born in Alsace-Lorraine, France
- August 3, 1902 - Ray Llewellyn (pseudonym of ZIV-TV composers Ray Block, David Rose, Peter Yorke et al)
- August 3, 1902 - David Buttolph (James David Buttolph Jr.) born in New York City, New York
- August 23, 1902 - Charles F. Paul born in New York City, New York
- October 1, 1902 - Joe Rines (Joseph Rines) born in Boston, Massachusetts
- October 10, 1902 - Jacques Belasco (aka: Jacques Dallin) (born Leonid Jacob Berladsky) in Odessa, Russia (now Ukraine)
- December 4, 1902 - Peter Yorke born in London, England, UK
- February 10, 1903 - Lewis Allan (born Abel Meeropol) in Bronx, New York City, New York
- March 11, 1903 - Lawrence Welk born in Strasburg, North Dakota
- April 29, 1903 - Dick Leibert (sometimes mis-spelled Liebert) (Richard William Leibert) born in Bethlehem, Pennsylvania
- May 21, 1903 - Sammy Timberg (Samuel Timberg) born in New York City, New York
- July 26, 1903 - Donald Voorhees (Donald David Voorhees) born in Allentown, Pennsylvania
- November 30, 1903 - Frank J. Worth born in Debrecen, Hungary
- December 9, 1903 - Matty Malneck (Matty Michael Malneck) born in Newark, New Jersey
- January 1, 1904 - Lou Kosloff born in Chicago, Illinois
- January 13, 1904 - Richard Addinsell (Richard Stewart Addinsell) born in Woburn Square, London, England, UK
- May 15, 1904 - Bert Shefter (Bert Abram Shefter) born in Poltova, Russia (now The Ukraine)
- April 13, 1904 - Peter Van Steeden Jr. born in Amsterdam, Noord-Holland, Netherlands
- October 6, 1904 - Joseph Hooven (aka: Joe Hooven) (Joseph Davis Hooven) born in Weatherly, Pennsylvania
- October 24, 1904 - Warren Foster (Warren B. Foster) born in Brooklyn, New York
- November 7, 1904 - Helmy Kresa born in Meissen, Germany
- December 31, 1904 - George Basil ("Buzz") Adlam born in Chelmsford, England, UK
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