Barend Worms was a son of Hartog Worms and Margaretha Aalsvel. He lived at 8 Lepelstraat, third floor, in Amsterdam. Of Barend Worms remain:
a birth certificate dated 10 November 1901
a Street-trader's Licence dated 16 July 1934 (with picture)
a 'Licence for buying up objects or materials on …
In addition, a Jokos file (number 35441) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.