Last names are complicated in the Netherlands. You need to research it. I am not sure I remember it correctly, but here is what I can remember. The fathers last name becomes the male childs first name. I am not sure how to continue. You need to use birth certs. to get the parents names.
Jakob Klaasen Goris m.
Birth11 Jul 1764inHouwerzijl, De Marne, Groningen, NetherlandsDeath16 Dec 1820inHouwerzijl, De Marne, Groningen, Netherlands
Married 1794 Houwerzijl, De Marne, Groningen, Netherlands
Jantje Cornellis (I have the name as Kornelis)
B:1776 in Houwerzijl, De Marne, Groningen, Netherlands D:26 OCT 1840 in Ulrum, Groningen, Netherlands
(father)Klaas Jacobs m.
married 23 SEP 1763
Geertje Harms Goris
Birth1738inHouwerzijl, De Marne, Groningen, NetherlandsDeath10 Jan 1815inLoppersum, Groningen, Netherlands
- At this point Jacobs takes the Goris name - I would like to know why
(Geertje's parents)Harmen Alberts Goris
BirthAug 1, 1682inHouwerzijl, De Marne, Groningen, NetherlandsDeath1776inHouwerzijl, De Marne, Groningen, Netherlands
m. Antje Willems
(father)Albert Goris had 3 wives
Albertje Evert – 1680 wife
Anna Goris1668 – child
Evert Goris1669 – child
Angtje Goris1679 – child
Not 100% sure - but this is what I have. Please share anything you get with me.
(make sure you put Goris in subject so I do not spam you