Betje van Geldere was the twelfth of the thirteen children of Salomon van Geldere and Sophia Polak. She was born in Rotterdam on 9 December 1875 and married there on 17 June 1903 the butcher Benjamin Manassen, who was born on 20 November 1872 in Druten as a son of Mozes Manassen and Jeannette Vles.
The Manassen-van Geldere couple had three children, viz. Sophia Jeannette in 1903, Jeannette in 1906…