I couldn't find this Robert in the 1920 WI Census in Wood county. But I have a Robert Diederich Schneck born 25 Jun 1877 who married a Grace B. and had at least 2 children Margaret J.(born 20 Nov 1904, Waukesha, WI) and James R. Schneck (born 21 Nov 1906 in WI). I don't have any other children that I have found, but I would love to get more information if this is the correct Robert. According to my records, this Robert D. had a brother John J born 20 May 1872 in Milwaukee and a sister Adelheid born 17 Jul 1878.