Naphtali Sealtiel was a son of 478571 and Sara Loezen. In 1927 he lived in the Lepelstraat 63. He workeds at that time for "de Veluwe" limited in the Weesperstraat.
Stadsarchief Amsterdam, archiefkaart Isaac Sealtiel; Archief van de gemeentelijke sociale dienst, inv. nr. 4318, dossier 82360
In addition, a Jokos file (number 35879) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.