Gretha Trijtel was deported to Sobibor in June 1943 from Vught via Westerbork on the so-called children's transport. She was 13 years old when she died. J. de Moei, Joodse kinderen in het kamp Vught (Vught 1999) 79
In addition, Jokos files (numbers 7823, 38066) on this family or other family members are at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos files reveal that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 10158/16197).