Wisconsin Department of Revenue Unclaimed Property Site

https://www.revenue.wi.gov/ucp/index.html

Go there and search the database by name.  I know one guy who was alerted to unclaimed property in his deceased parents' name by his ex-sister-in-law.  He checked the site,  Sure enough, there was money there from his father's life insurance company: $3,200.  He put in a claim.  There was a lot of waiting.  A couple of times, the Department of Revenue requested additional information and/or documentation.  He checked the status of his claim on the website regularly. He waited and waited.  Finally, a little more than three months after he first put in a claim, the Department of Revenue approved his claim.

Talk about free money...