Following a tip, two members of the Kolonne Henneicke found eight Jews in hiding in the basement of the building at 61 Amstel in Amsterdam: Theresia Kroonenburg, Samson Koopman, his wife Alida Hijman and their son Emanuel, Abraham Rubens and his wife Elisabeth Aap, Gerrit Vandien and his wife Rachel Kokernoot.
A. van Liempt, Kopgeld. Nederlandse premiejagers op zoek naar joden, 1943 (Amsterdam 2002) 174
Biography