I learned you are looking for Bernardus Blaauw from Holland
I’m Joop Schreuder (1940) from Holland
Dietje Blaauw(1878) in Den Ham - Aduard / Groningen / The Netherlands) the daughter of Dietje Blaauw Posthumus (1851) and Bernardus Blaauw (1843 or 1849?) was my grandmother. She was married with Dirk Schreuder (1871 - 1902?) Their sun (my father)was Petrus Theodoor Gerardus Schreuder (1900). Are we talking about the same individuals? Like to hear from you. Best regards. Joop.