Wilhelmina Vogel was a daughter of Joël Vogel and Hanna Korper. She married Lion de Heer in 1912 in Rotterdam. He died in 1937. They had two children who survived the war.
Addition of a visitor of the website
In addition, a Jokos file (number 32653) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.