Nathan ter Berg was a son of Izaak ter Berg and Rebekka Jozefs Wolf. He married in Winschoten on 5 June 1902 to Henriette de Jonge. As far as known, the couple had three sons: Izaak, Noach Robert and Jozef.
Genlias and the website www.allegroningers.nl.
In addition, a Jokos file (number 10667) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.