Abraham Groonheim was a son of Mozes Groonheim and Bertha Kaufmann. He married 28 July 1942 in Amsterdam Sara Philip from Eibergen, who has survived the war.
City Archive of Amstardam, archive card of Abraham Groonheim.
In addition, a Jokos file (number 3913) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.