https://www.mappingthelives.org/bio/cf28a3f6-2cfd-417f-ad17-581a89b617a1
his daughter Gretchen https://www.mappingthelives.org/bio/7d26c56a-b473-43e0-b518-2912aa410eb6
https://www.myheritage.com/research/record-10921-96397/grete-gretchen-gretel-margarete-kann-born-wagner-in-germany-jewish-victims-of-nazi-persecution?tr_id=m_lkxbwjy802_ae37k3sfzl
