German SS Aufseherin (female guard) at many Nazi concentration camps during World War II.
On 15 November 1939, Ehlert was called for Schutzstaffel work by the Labor Exchange. She began work at Ravensbrück concentration camp. In October 1942 she was moved as an Aufseherin to the Majdanek camp near Lublin. By mid-1944, she was transferred to Krakau. SS officers there noticed she was too lenient, polite and helpful to the prisoners, so the SS sent her back to Ravensbrück to undergo another training course, this time by Dorothea Binz.
Ehlert was later moved to the Auschwitz concentration camp as an Aufseherin where she oversaw women commanding Kommandos (slave labor groups). Ehlert later served as a guard at the Auschwitz subcamp in Rajsko, Poland, before she was transferred to the Bergen-Belsen concentration camp, where she became deputy wardress under Oberaufseherinnen Elisabeth Volkenrath and Irma Grese.
When the British Army liberated the Belsen camp, Ehlert was arrested and tried at the Belsen Trial. She pleaded not guilty to all charges. She was found guilty at Belsen and innocent at O?wi?cim.
She was sentenced to 15 years in prison, but was given early release on 7 May 1953. After the war Ehlert lived under the assumed name Herta Naumann. She died on 4 April 1997, aged 92.

Link to Wikipedia biography