Artist: Laura Duncan, Ernie Lieberman, Betty Sanders & Osborne Smith
In German. Protest song banned during the Nazi regime, reason why there are no older versions. The song was first published in songbook Lieder der Brienzer Mädchen in Bern and in 1842 in songbook Schlesische Volkslieder by Hoffmann von Fallersleben and Ernst Richter. Sophie Scholls played it on flute in front of the prison where her father was incarcerated for protesting against Hitler and the people of Berlin sang it in 1948 to appreciate a speech by their Burgermeister Ernst Reuter at the pinnacle of the city's blockade by the Russians.
Martha Schlamme [with Pete Seeger, also in German (for Folkways)]
Pete Seeger [in German]
Belgisch Combo [as De Gedachten Zijn Vrij]
Carolyn Hester & Pete Seeger [still in German]
Cobi Schreijer [as De Gedachten Zijn Vrij]
Leonard Cohen [idem]