Family with parents
mother
Parents
HendrikSlotboom
Aaltjevan Heerd
AdrianaSlotboom
1858–1914
himself
Family
(none)
HendrikSlotboom
1884–1884
Mother’s family with RoelofBeijer
step-father
Parents
(unknown)
RoelofBeijer
1861–1932
mother
Parents
HendrikSlotboom
Aaltjevan Heerd
AdrianaSlotboom
1858–1914
half-brother
Family
TheodoraKersten
RudolfBeijer