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: Oudemanhuispoort 11 in Amsterdam.
Abstracts of the police archives which are currently at the Amsterdam municipal archives
More information about Barend Boekman and other Jewish booksellers can be found in:
J.Vis, De Poort. De Oudemanhuispoort en haar gebruikers 1602-2002 (Amsterdam 2002).
F.J. Dubiez, Barend Boekman van de Oudemanhuispoort (Amsterdam 1955).