- Jun 1 Dutch soccer club Stormvogels forms in Ijmuiden; merges with VSV to form Telstar in 1963
- Jun 4 Cone of Mount Katmai (Alaska) collapses
- Jun 4 State of Massachusetts passes 1st US minimum wage law
- Jun 5 US marines invade Caimanera, Cuba
Eruption of Novarupta
Jun 6 The eruption of Novarupta in Alaska begins, the largest volcanic eruption of the 20th century
- Jun 7 St Pius X encyclical "On Indians of South America"
- Jun 7 US army tests 1st machine gun mounted on a plane
- Jun 8 Carl Laemmle incorporates Universal Pictures.
- Jun 13 NY Giant Christy Mathewson wins his 300th game
- Jun 15 US National Championship Women's Tennis, Philadelphia CC: Mary Browne beats Eleonora Sears 6-4, 6-2 for her first of 3 straight US singles titles
Republican Party Split
Jun 18 The Chicago national Republican Convention splits between President Taft and Theodore Roosevelt; after Taft is nominated, Roosevelt and progressive elements of the Party form the Progressive Party (also known as the 'Bull Moose Party')
52nd British Men's Open
Jun 25 British Open Men's Golf, Muirfield: Ted Ray wins wire-to-wire by 4 shots from defending champion Harry Vardon
Mahler's 9th Symphony
Jun 26 Gustav Mahler's 9th Symphony premieres in Vienna, Austria with Bruno Walter conducting the Vienna Philharmonic
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