Schoontje Loonstijn was a daughter of Joseph Loonstijn and Eva Vos. She married in Amsterdam on 14 November 1929 to Jacob Groen, son of Mozes Groen and Judith Dekker. Jacob Groen survived the Holocaust and remarried in December 1946 to Mietje Truder.
City Archive of Amsterdam, archive card of Schoontje Loonstijn and Jacob Groen.
Biography