Before he married Mietje Gans, Barend Boekman was married to Hendrina Lenson. With her he had four children. Their oldest son, Emanuel Boekman died on 1 June 1927. Levie Boekman and Kaatje Boekman didn't survive the war.
Addition of a visitor of the website
According to a list with shops of Jewish owners, compiled by the Amsterdam police in 1940, Barend Boekman had a bookshop, address: …