Nathan Blom was a son of Mozes Blom (born 1856) and Sophia van Praag (born 1852). He was a widower of Esther de Wind (1888-1931) and he married in July 1935 in Den Haag to Jaantje Poons. The families of his two (married) sisters Naatje Tokkie-Blom and Kaatje Ossendrijver-Blom, and his brother Maurit…