About Ann Routledge
There are some errors from your source which I thought I'd put on the list so that they go into the Archives for those researching Wilmot in the future.
The information regarding the 1st wife of Joseph Edward WILMOT (he is not William Joseph but he had a grandson by that name) is as follows:
Ann Routledge died BEFORE the settlers left England and Joseph remarried Susannah Richmond on 27 Dec 1819. There is no record of any children born to Ann & Joseph.
Edward Joseph Wilmot was born 30 Jun 1823 (he was the 2nd son & 2nd child of Joseph & Susannah; the 1st being John Richmond Wilmot born 20 July 1821). I have photocopies from Joseph & Susannah's family Bible to confirm this.
The Settler Handbook and other 1820 Settler sources incorrectly give Ann Routledge as the wife who accompanied the Settler Joseph WILMOT. As his first wife, her name had been given with Joseph Wilmot's when they applied to emigrate and was obviously never changed after she died and he remarried just before emigrating.
William Jervois has done a lot of research on the WILMOT family and wrote a very interesting and well researched article on the Wilmot family for "The Settler" magazine and will confirm that the information I've given is correct.
Maureen White River