By law, Wisconsin counties were required to register a birth event with a state official starting in 1852. However, it was not strictly enforced until the 1880s. Many of these records have an uncertified copy available for purchase from the https://www.dhs.wisconsin.gov/vitalrecords/index.htm" class="green" target="_blank">Wisconsin Historical Society and the Wisconsin Department of Health Services.
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.