Jacob Fride was a son of Herman Fride and Esther Nitka. He married in Amsterdam on 9 Juli 1919 to Sipora Wertheim, daughter of Jonas Wertheim and Rebecka Levy. The couple had three children: Herman, Jonas and Esther Malka.
City Archive of Amsterdam, archive card of Jacob Fride.
In addition, Jokos files (numbers 52268, 50229, 54285) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.