[2] She studied at the Städelschule under Willi Baumeister and participated at the New Frankfurt-project.

Remaining in Germany during World War II, Hoepffner worked as an illustrator for the magazine Das Illustrierte Blatt.

[1] Hoepffner taught at a photography school in Hofheim am Taunus along with her partner and fellow photographer, Irm Schoeffers, and her sister sister, Madeleine Hoepffner.

[1] Hoepffner died on 3 April 2000 in Lindenberg im Allgäu.

[6] Hoepffner's work was included in the 2021 exhibition Women in Abstraction at the Centre Pompidou.