Ephraim Bril was a son of Salomon Bril and Naatje Polak. He married in Amsterdam on 17 October 1934 to Anna Frank, daughter of Joseph Frank and Betje Waas. The couple had one daughter, Nanna, who did not survive the Holocaust too.
City Archive of Amsterdam, archive card of Ephraim Bril and Joseph Fr…
In addition, a Jokos file (number 35596) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.