#germany POB: D¨sseldorf
#jew
Otto Joachim (Joachimstahl) (1910 - 2010) - Genealogy (geni.com)
Joachim, Otto (1910–2010) - Routledge Encyclopedia of Modernism
Otto Joachim | The Canadian Encyclopedia
https://www.discogs.com/fr/artist/419440-Otto-Joachim