Otto and his wife Sophie are commemorated by adjacent rose bushes , planted in the Willesden Jewish Cemetery in London .
Otto Metzger died of a heart - attack in 1961 .
Otto Metzger and Otto Metzger 's wife Sophie are commemorated by adjacent rose bushes , planted in the Willesden Jewish Cemetery in London .
Otto Metzger died of a heart - attack in 1961 .