Abraham Frank was a son of Akiba Frank and Heintje de Lange. On 28 April 1938 he married in Amsterdam Elisabeth Steintje den Hartog, a daughter of Hartog den Hartog (passed in 1926) and Carolina van der Giessen.
After their marriage in 1938 the lived in with their mothther-in-law Carolina den Hartog-van der Giesen at Sarpatistraat 90 III, which was her residence since July 1936. Both children, Joz…