Family with parents
father Parents OmiusOomkens MariaBlencke	JanOomkens 1699–1748
mother Parents (unknown)	Maria ElisabethKuijl 1700–1726
elder sister Family (none)	MariaOomkens 1723–1723
herself Family Lucasvan Giffen Lambertusvan Giffen Janvan Giffen Lambertusvan Giffen Maria Elisabethvan Giffen Lucasvan Giffen Omiusvan Giffen Lambertusvan Giffen Alexandervan Giffen JanBoelens HendrikSmith	AbigaelOomkens 1724–1788
Father’s family with Alegonda ElisabethPierius
father Parents OmiusOomkens MariaBlencke	JanOomkens 1699–1748
step-mother Parents GerardusPierius LucretiaBorgesius	Alegonda ElisabethPierius 1701–1784
half-sister Family (none)	Maria JohannaOomkens 1730–1735
half-sister Family ArnoldusDijk EngelinaDijk Jan Oomkesvan Dijk Arnoldus OmiusDijk AeilkoDijk JacobusDijk	LucretiaOomkens 1731–1805
half-brother Family CatharinaEilerts OmiusOomkens	OmiusOomkens 1734–1761
half-sister Family (none)	MariaOomkens 1736–1736
half-brother Family (none)	GerardusOomkens 1738–1738
half-sister Family (none)	MariaOomkens 1739–1742
half-brother Family Gerhardina HaijolinaPierius Omius JanOomkens Dorothea AlagondaOomkens AdamusOomkens Alagonda ElizabethOomkens AefjenOomkens	GerardusOomkens 1741–1810
half-sister Family (none)	MariaOomkens 1744–1745
half-brother Family WijbijnaBandtsma NNOomkens HarmannaStheeman Alagonda ElisabethOomkens HaikoOomkens JanOomkens JanOomkens HaikoOomkens SijpkoOomkens Alagonda EilsabethOomkens Sijpko MariaOomkens	JanOomkens 1746–1832
Family with Lucasvan Giffen
husband Parents (unknown)	Lucasvan Giffen 1720–1758
herself Parents JanOomkens Maria ElisabethKuijl	AbigaelOomkens 1724–1788
son Family (none)	Lambertusvan Giffen