He is married to Clara Wilhelmina Wilkens.
nageslacht, zie https://www.genealogieonline.nl/noblesse-europeenne/I203752.php
They got married on June 4, 1875 at .Amsterdam, Noord-Holland, Nederland, he was 31 years old.Amsterdam, Noord-Holland, Nederland.Source 3
https://www.stamboomnederland.nl/start?wicket:interface=:6::::
voorgeslacht: zie https://www.genealogieonline.nl/west-europese-adel/I174042.php
Jacob Willem Hendrik Crommelin | ||||||||||
1875 | ||||||||||
Clara Wilhelmina Wilkens |