Louis Viskoper was a son of Elias Viskoper and Eva Boas. He married in Amsterdam on 31 October 1935 to Barendina van der Stam, daughter of Louis van der Stam and Elisabeth van Hachgenberg.
Civil Registry of Den Haag, family registration card of Louis Viskoper and Municipal Archive of Rotterdam, index births of Barendina van der Stam.
Biography