[3][4] After initially working at hospitals in Magdeburg, she became a camp leader in the Reich Labour Service during World War II.
After the war, she fled to the Northeim district in Lower Saxony, where she and her husband opened a dairy wholesale store until 1954, when they moved to the city of Oldenburg.
[5] In the 1961 West German federal election, Winkelvoss ran for the Bundestag as a member of the DRP, standing as a state list (landesliste [de]) candidate in Lower Saxony, though she was defeated.
[1] In 1964, Winkelvoss moved to the city of Lüneburg and joined the newly founded neo-Nazi National Democratic Party (NPD).
[1] Her husband, Dr. Reimer Winkelvoss,[10] was a judge at the Lower Saxony Higher Administrative Court [de], and they had four children together.