- Jun 2 Hakon Børresen, Danish composer, born in Copenhagen, Denmark (d. 1954)
- Jun 4 Clara Blandick [Clara Blanchard Dickey], American stage and screen character actress (Tom Sawyer; Huckleberry Finn; Wizard of Oz), born on board an American ship in Hong Kong (d. 1962)
- Jun 11 Alfred L. Kroeber, American anthropologist and author (Anthropologist looks at History), born in Hoboken, New Jersey (d. 1960)
- Jun 12 Narciso Garay, Panamanian composer, born in Panama (d. 1953)
- Jun 13 William Sealy Gosset, English statistician (Student's t-distribution), born in Canterbury, Kent, England (d. 1937)
- Jun 21 Willem Hendrik Keesom, Dutch physicist (helium vast), born in Texel, Netherlands (d. 1956)
- Jun 22 H. Guy Bedwell, American thoroughbred trainer (North American champion in wins x 7; earnings 1918-19; first Triple Crown winner, Sir Barton), born in Roseburg, Oregon (d. 1951)
- Jun 22 [Gwendolen] Gwen John, Welsh painter, born in Haverfordwest, Wales (d. 1939)
- Jun 23 Irvin S Cobb, Ky, writer/humorist (Old Judge Priest)
- Jun 28 Clara Maass, American army nurse who sacrificed her life at 25 to prove that mosquitoes carry yellow fever, born in East Orange, New Jersey (d. 1901)
- Jun 29 Nellie Tayloe Ross, American educator, politician, 1st woman to serve as a governor (Wyoming, 1925-27), and administrator (Director of US Mint, 1933-53), born in Saint Joseph, Missouri (d. 1977)