Barend Cozijn was a son of Abraham Cozijn and Sippora Premseler. He married in Amsterdam on 10 June 1934 to Anne Elisabeth Groen. The couple had one daughter in 1937.
City Archive of Amsterdam, archive card of Barend Cozijn.
Information about Barend Cozijn and his family during their period in hiding can be found in J. Breukelaar Halte Varsseveld (zp 2005).
Addition of a visitor of the website.