I have a tree for a Jacobs family which commences with Elias Rypinski Jacobs and his wife Henriette Leisersohn who were married in 1833. I don't know where this marriage took place and apart from the date of marriage no other dates are shown on the tree. A granddaughter of this couple married Isaac Isaacs, later Governor General of Australia and their two daughters married men of my Cohen/Levy family. The Australian Dictionary of Biography is freely available online but Isaac's entry doesn't show much family information. My two 3 x gt grandmothers Sarah/Sierlah and Martha were sisters the daughters of Eleazer/Eliezer Levy. Sierlah married Barnett/Burnett/Baruch Cohen and Martha married Benjamin Wolfe Levy who died in 1829. I am sure there was more than one Eleazer Levy in London at the time and I have no indication of who his brother might have been. One of Martha's sons was David Levy later Lewis of Lewis's stores in Liverpool and Birmingham etc. The Cohen family has been connected to a very wealthy London family of that name, but there is no documentary evidence of this and they would appear to have moved in very different circles. I wouldn't rely on the Colyer Fergusson tree. Dinah Harvey Sydney Australia