Family with parents
father Parents HendrikSlotboom Elizabetjevan der Biezen	JacobSlotboom 1866–1942
mother Parents (unknown)	Corneliavan der Poel 1867–1908
elder sister Family Gijsbertusvan Viegen	ElizabethSlotboom 1890–1971
elder sister Family (none)	JannetjeSlotboom 1892–1902
elder brother Family (none)	HendrikSlotboom 1894–1899
elder sister Family Marcelisvan Viegen Jannetjevan Viegen Private Willemvan Viegen Aalberthavan Viegen Corneliavan Vviegen Private	AalberthaSlotboom