Elias Viskoper was a son of Jacob Viskoper and Marianne de Jong. He married in Den Haag on 22 April 1903 to Eva Boas, daughter of Juda Boas and Grietje Cohen. The couple had seven children together: Marianne, Jacob, Grietje, Juda Elias, Louis, Clara and Abraham, who still lived with his parents.
Municipal Archive of Amsterdam, index marriages and Civil Registry Den Haag, family registration card of Elias Viskoper.
Biography