Wis. Stat. § 177.0802: Administrator to retain records of property.

The administrator shall do all of the following:

(1) Record the name, last-known address, social security number or taxpayer identification number, and date of birth of each person shown on a report filed under s. 177.0401 to be the apparent owner of property delivered to the administrator.

(2) Record the name, last-known address, social security number or taxpayer identification number, and date of birth of each insured or annuitant and beneficiary shown on the report.

(3) For each policy of insurance or annuity contract listed in the report of an insurance company, record the policy or account number, the name of the company, and the amount due or paid.

(4) For each apparent owner listed in the report, record the name of the holder that filed the report and the amount due or paid.

(5) For each U.S. savings bond, record the name and last-known address of each owner of the U.S. savings bond and the issue date, face amount, and serial number of the U.S. savings bond.