Ephraim Cohen was a son of Elias Izak Cohen and Naatje Bernard. He married Vogelina de Groot in 1918 in Groningen. Addition of a visitor of the website
In addition, a Jokos file (number 17593) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 1878/16770).