Rita A. Ritterbeck
1936 - 2008 (72 years)(
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- 1 Rita A. Ritterbeck [1] b. 22 Jul 1936 d. 24 Sep 2008
- James Joseph Zwick b. 1 Mar 1933 d. 26 Mar 1989
- 2 David Zwick [1.1]
- 2 Donald E, Zwick [1.2] d. 9 Apr 2020
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- 3 Zwick [1.2.1]
- 3 Zwick [1.2.1]
- 2 Robert Zwick [1.3]
- 2 Michael Zwick [1.4]
- 2 Krista A. Zwick [1.5] b. 4 Apr 1976 d. 20 Nov 2004
- + Joseph W. Young b. 9 Apr 1970 d. 20 Nov 2004
- + Joseph W. Young b. 9 Apr 1970 d. 20 Nov 2004
- 2 David Zwick [1.1]