Women in the Netherlands never take on the surname of their husbands officially. In the period of Maytje people often only had a firstname and patronym (in her case "Jacobse" after her father Jacob), which according to the Dutch Geni convention is written in the second name field and not in the surname field (to avoid confusion that it may be a surname). Later sometimes a patronym stayed with later generations and became their surname but this was mainly in the Napolionic era - ca 1800s - when surnames became compulsary.
Only if we have official sources (other Internet trees are not proper sources) that support other (sur)names should they be listed in the official name fields. Other names can be listed in "also known as"/aka field or the display name field.
