Robert Carl Siebert
1873 - 1931 (57 years)(
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- 1 Robert Carl Siebert [1] b. 23 Jul 1873 d. 1931
- Rosa Emily Schantz b. 2 Jan 1872 d. 8 Oct 1946
- 2 Robert Irving Siebert [1.1] b. 3 Feb 1909 d. May 1984
- + Unknown
- + Unknown
- 2 Robert Irving Siebert [1.1]