Mjam, your information prompted me to buy the Elizabeth's Death Certificate from NSW BDM. Everything adds up however it does provide a little more information if accurate. I also purchased the Qld Register Copy of the marriage details but it provides the exact details on the typed NSW Certifcate
It appears she would have arrived in Australia in 1852 (I am open to 1851-53) if I go by the Years in Colony section on the certificate.
Thank you for your response and I will be following up on the links you provided and keep searching.
