Looks like the Milwaukee Journal Sentinel is now charging non subscribers for articles older than fourteen days. Access to the archives is free for 7 Day subscribers. See the Milwaukee Journal Sentinel Archive Search page for more information, including pricing. (Thanks to Bev Butula & Diane Duffey for the tip)
Wisconsinites can still access Journal Sentinel content back to 1995, and much more, free of charge through Badgerlink. See the Wisconsin newsstand. If your ISP doesn’t provide access to Badgerlink, you may also be able to use your public library barcode number as a log-in ID.