https://www.mappingthelives.org/bio/b0912baa-2e1f-4a45-b05c-912fda5e4cab
- Born August 17, 1893 - Saarwellingen, Saarlouis, Saarland, Germany
- Deceased March 18, 1988 - Zürich, Zürich, Switzerland, aged 94 years old
Parents
- Bernhard Bonnem 1855-1895
- Cilli Klopfer 1858-1931