David Davids was the widower of Henriëtte (Jet) Nordheimer, who died of cancer in 1938. The couple had no children. David was an optician. He also imported hearing aids from the United States and had a patent on a type of cement that was essential for cutting diamonds. David was present at the cutting of the Koh-I-Noor diamond, for which his cement was used.
David Davids was the father figure and …