Wilhelmina Calvert
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- 1 Wilhelmina Calvert [1]
- John George Clay
- 2 Olive Clay [1.1] b. 1908 d. 1965
- Otto Jens Nielsen b. 1902 d. 2 Nov 1937
- 3 Winifred Marion Nielsen [1.1.1] b. 1937
- John Anthony Sivell b. 1932
- 4 Neil John Sivell [1.1.1.1] b. 6 Jun 1961
- 4 Robyn Lee Sivell [1.1.1.2] b. 24 Oct 1963
[ =>]
- 4 Neil John Sivell [1.1.1.1]
- 3 Winifred Marion Nielsen [1.1.1]
- 2 Olive Clay [1.1]