Weddingparty in Hotel Parkzicht in Amsterdam for Isidor de Lange and Marianne Leefsma on 12 September 1918. On the picture the complete families de Lange and Leefsma. Private collection
In addition, Jokos files (numbers 60147, 2056) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.