Jesaia Hangjas was a son of Sara Mozes Hangjas. He married Klaartje Schelvis in 1896 in Rotterdam. She passed away in 1939. They had seven children: Israel Leendert, Abraham, Moses, Sara (who passed away in 1903), Hartog, Anna and Samuel (who passed away in 1915).
Stadsarchief Amsterdam, archiefkaart Jesaia Hangjas