Descendancy for Bertha Valkenburg

1843 - 1873 (29 years)

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1 Bertha Valkenburg ^[1] b. 5 Aug 1843 d. 1 Mar 1873
- Jan Jacob Osnabrugge b. 6 Feb 1838 d. 9 Apr 1906
  - 2 Cornelis Osnabrugge ^[1.1] b. 19 Apr 1872 d. 27 Aug 1874