Benjamin Lopes Cardozo was a son of Moses Lopes Cardozo and Mirjam Ailjon. He married in 1910 in Amsterdam. This marriage was dissolved in 1929 by a divorce. He had five children from this marriage. In 1939 he married again in Amsterdam. This marriage was dissolved on 12 December 1940 by a divorce.
Stadsarchief Amsterdam, archiefkaart Benjamin Lopes Cardozo