Jacob Heijmans, born on 3 March 1903 in Alphen aan den Rijn, was a son of Joseph Heijmans and Susanna Gersons. He had two brothers, Nathan and Abraham Barend and two sisters, Elizabeth and Henriette. There has been a little brother Benjamin too, who died three months after his birth in 1895.
After Jacob’s parents, together with his sisters Elizabeth and Henriette moved from Alphen aan den Rijn to …