Hager was born on 20 March1872 in Penzlin, Germany. Hager exhibited regularly and was often commissioned to create specific city- or town-scapes. She was a member of the Allgemeinen Deutschen Künstlergenossenschaft, the Vereins Berliner Künstlerinnen, and the Mecklenburger Künstlerbundes. She died on 25 April1947 in Burg Stargard.