Nathan Blom was a son of Salomon Blom and Hendrika Kosman, who had a family with ten children: Nathan himself, Hartog, Elisabeth, Duifje, Israel, Rachel, Samuel, Barend, Machiel and Greta, who survived the Holocaust.
Nathan married in Amsterdam on 27 November 1912 to Sientje Bromet, daughter of Israel Bromet and Saartje Presser.
website www.wiewaswie.nl.