I learned more family history today when I visited the Yolo County Archives in Woodland, CA.
Three family members are buried in the Winters Cemetery, Sec. 2, Lot 71, Kettenburg Plot:
--Henry Kettenburg, b. 5 Apr 1860, d. 16 Jul 1936 --Caroline Kettenburg, b. 25 Jul 1865, d. 2 May 1916 --Clarence G. Kettenburg, b. 17 Aug 1895, d. 14 Jul 1912
According to a newspaper article published in "The Winters Express," Friday, 19 Jul 1912, page 1, Clarence G. Kettenburg was 17 years old when he drowned while swimming in Putah Creek.A companion, Joseph L. Clifford, 21 years old, also drowned during an attempt at rescuing Clarence, who entered the water first.Joseph was the brother of William Clifford, the husband of Caroline D. Kettenburg.