Fred married Christina Opp on 5 Feb 1911 in Eureka, McPherson County, South Dakota, USA. Christina (daughter of Johannes Daniel Opp and Katharina Gohl) was born on 1 Dec 1891 in Eureka, McPherson County, South Dakota, USA; died in 0May 1983 in Portland, Multnomah County, Oregon, USA. [Group Sheet] [Family Chart]

1. Adeline Eva Wittmayer was born on 26 Aug 1911 in South Dakota, USA; died on 6 Dec 1990 in Oregon, USA.
2. Olive Roseanne Wittmayer
3. Calvin Daniel Wittmayer was born on 19 Nov 1914 in South Dakota, USA; died on 25 Sep 1990 in Portland, Multnomah County, Oregon, USA.
4. Lester Fred Wittmayer was born on 8 Mar 1921 in South Dakota, USA; died on 17 Aug 1984 in Portland, Multnomah County, Oregon, USA; was buried in Willamette National Cemetery, Portland, Multnomah County, Oregon, USA.
5. Delores Blanche Wittmayer was born on 17 Sep 1926 in South Dakota, USA; died on 8 Nov 1984 in Portland, Multnomah County, Oregon, USA.

Peter married Eva Heiser. [Group Sheet] [Family Chart]