B. Hjort was a noted lawyer who co-founded the Norwegian fascist party Nasjonal Samling with Vidkun Quisling in 1933.

[6] Over time Wanda was able to gain access to the package sorting facility (Paketstelle) within the first perimeter of the camp, where she was able to pass messages with Norwegian prisoners who worked there, among them Kristian Ottosen.

[7] These messages, sometimes written on small notes, other times passed orally, enabled the Hjort family (who by then was joined at Gross Kreutz by the family of former Sachsenhausen prisoner and the rector of the University of Oslo, Didrik Arup Seip) to compile complete and accurate lists of Norwegians held in captivity in Germany, including the all-important prisoner numbers.

[2][9] Her book Hver fredag foran porten (Gyldendal, 1984, later editions 1995 and 2005) about the war years won the prize for being the best documentary book in 1984, and has been translated into German (Jeden Freitag vor dem Tor, Schneekluth, 1989) and French (Tous les vendredis devant le portail, Gaia, 2009).

Immediately after the war ended in 1945, she married Bjørn Heger, a Norwegian medical student released from a prison in Berlin, at the seaman's church in Hamburg.

She earned a degree in social work and pursued a career helping female inmates in Norwegian prisons.