Abraham van Allemans was a son of Jonas van Allemans and Reintje van Allemans-Cohen. He married on 10 July 1929 in Amsterdam to Rebecca Prijs.
Genlias.
In addition, a Jokos file (number 9080) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.