Isaac Jacob
- 1925( = Descendancy chart to this point, = Expand, = Collapse)
- 1 Isaac Jacob d. 06 Mar 1925
- Millie Strauss b. May 1877 d. 29 Oct 1965
- 2 Herbert Jacob b. 1904 d. 06 Sep 1958
- Helen Bloomfield
- 3 Jonathan Allan
- 3 Leslie Allan b. 05 Nov 1945 d. 25 Apr 2005
- Helen Bloomfield
- 2 Herbert Jacob b. 1904 d. 06 Sep 1958
- Millie Strauss b. May 1877 d. 29 Oct 1965