Margaretha Brock
1830 - 1912 (82 years)(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 Margaretha Brock [1] b. 1830 d. 1912
- Johannes Rock b. 1828 d. 1897
- 2 Johannes Marcus Rock [1.1] b. 24 Mar 1862 d. 15 Oct 1934
- + Alice Elisabetha Gander b. 20 Aug 1863 d. 15 Feb 1933
- + Alice Elisabetha Gander b. 20 Aug 1863 d. 15 Feb 1933
- 2 Johannes Marcus Rock [1.1]