[1] She was a member of the Staatstheater Darmstadt from 1946, of the Pfalztheater in Kaiserslautern from 1949, and at the Nationaltheater Mannheim from 1951 to 1956, where she appeared in the title role in the premiere of Fred Raymond's operetta Geliebte Manuela [de] in 1951.

[1] Her repertoire contained music from Arnold Schoenberg to Karlheinz Stockhausen and Luigi Nono,[2] and she performed in operas by Boris Blacher, Werner Egk, Gottfried von Einem and Gerhard Wimberger.

[1] Dieter Schnebel composed for her in 1970/71, Atemzüge, für mehrere Stimmorgane und Reproduktionsgeräte, which she premiered in November 1971 in Rome, with Gisela Saur-Kontarsky and William Pearson.

[3] She was the vocal soloist in a 1961 recording of Le Marteau sans maître by Pierre Boulez, with flutist Severino Gazzelloni, violist Dino Asciolla [it], percussionist Leonida Torrebruno, conducted by Bruno Maderna.

Henius was called 1977 to the Musiktheater im Revier in Gelsenkirchen by the new Intendant, Claus Leininger to form and direct a musik-theater-werkstatt (Music Theatre Workshop).