I just joined this list and am searching for my wife's ancestors which were named Hoffman. I found them in Walworth county in the 1880, 1900,1910 and 1920 census but they are not in the same location in the 1870 census but were in Wisconsin according the the birth dates of children. Is there an index to the 1870 census for Wisconsin or Walworth County? The family we are looking for in the 1870 census is Adam Hoffman, with wife Caroline and one child named John- aged 4 to 6 years. Any help will be greatly appreciated. Thanks in advance Bob Trehearne