- Jun 3 Prince Baudouin of Belgium, Count of Flaanders, born in Palais de la Régence, Brussels, Belgium (d. 1891)
- Jun 6 Siegfried Wagner, German opera composer and conductor, born in Tribschen, Lucerne, Switzerland (d. 1930)
- Jun 10 Gustave Vanzype, Belgian literary (La Gazette), born in Brussels (d. 1955)
- Jun 13 Ede Poldini, Hungarian composer (La poupée valsante; The Vagabond and the Princess), born in Pest, Hungary (d. 1957)
- Jun 22 Hendrikus Colijn, Dutch army officer and Anti-Revolution Party (ARP) politician (Prime Minister, 1925-26 & 1933-39), born in Haarlemmermeer, North Holland, Netherlands (d. 1944)
- Jun 26 Martin Andersen Nexø, Danish writer (Pelle Erobreren), born in Copenhagen, Denmark (d. 1954)
Emma Goldman (1869-1940)
Jun 27 Russian-American anarchist, writer (Anarchism and Other Essays; Living My Life), publisher (Mother Earth), and feminist, born in Kovno, Russian Empire (now Kaunas, Lithuania) [1]
- Jun 27 Hans Spemann, German embryologist (Nobel Prize in Physiology or Medicine 1935), born in Stuttgart, Germany (d. 1941)
- Jun 27 Kate Carew [Mary Williams], American caricaturist, born in Oakland, California (d. 1961)