Hi John,
No sorry I don't really, however, I did find some info re the Tantivy on a web site - I think it was Cyndi's List - if you can't find the site, please get back to me and I will track it down.
Would you happen to know why those families emigrated from Norfolk and ended up around the Moruya area - do you know if there was some special arrangement re where they could live as assisted immigrants, etc.?
I would certainly be interested to learn more about your Tantivy research, as surely it will have some bearing on my Constable family.
Kind regards, Lyle (Sydney)