Eulenberg was born in Meiderich (today part of Duisburg) in Prussian Rhine Province, the daughter of Wilhelm Maase, a music director.
In 1905, they moved to Kaiserswerth near Düsseldorf, where Eulenberg worked as a dramaturge at the Schauspielhaus theatre under director Louise Dumont.
At her new home, she began her first translations of Guy de Maupassant, Charles Dickens and further works by Émile Zola.
In 1936, the Nazi authorities started persecution of Hedda and Herbert Eulenberg to destroy their economical and intellectual existence.
In 1956, she returned to her translations of Henri Troyat, Yvette Guilbert, and Thomas Burke, all published by Heinrich Droste in Düsseldorf.