Clarence married Viola Esther Splittgerber Sep 1922. Viola (daughter of Albert F. Splittgerber and Anna Wilhelmine Emilie Neitzel) was born 27 Mar 1901, Sheboygan, Wisconsin, USA; died 6 Aug 1964, Milwaukee, Wisconsin, USA. [Group Sheet]

1. Living
2. Robert Clarence Slater was born 22 Jun 1923; died 11 May 1997, Ozaukee, Wisconsin, USA.
3. June V. Slater was born 17 Jun 1925; died 25 Nov 2005, Ozaukee, Wisconsin, USA.
4. Terris Elwood Slater was born 31 Dec 1934; died 19 Jun 2007.