Nathan van Os was the son of Joseph van Os and Vogeline de Rosa. He was married to Naatje Boas. Their children Vogeline van Os and Joseph van Os were killed. Nathan van Os was a merchant. The family lived at 5 Zwanenburgerstraat, third floor, in Amsterdam.
NIOD, Records Stichting Sieraden-Comité, box HF 15, file 225
In addition, a Jokos file (number 54327) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.