Ancestry.com has a couple of different version with access to different resources. Normally you would need to come to the library to use Ancestry.com Library Edition, which has free access to a variety of different databases not included with the public version.
However, throughout the pandemic, the Library Edition has been available for access from home, for free, with your Demmer Library Wisconsin Valley Library Service library card.
Here are the instructions for logging in from home using your library card.
That’s all that’s to it! Now hours of genealogical digging is at your fingertips.