1893 - 1974 (80 years)(
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Walter Oswald Sauer b. 27 Sep 1909 d. 28 Dec 1970 b. 29 Oct 1931 d. 28 Sep 2014
b. 07 Aug 1937 d. 30 Dec 2001
b. 13 Oct 1940 d. Jun 1987
