Not at home so don't have the full details to hand - but, the Twynam who went to Australia did so in 1855 and the Bahamian Twynam was his cousin, so, mid 1800s probably. I know there's a district in the Bahamas called Twynam Heights but I can't trace any Twynams living there now or any information about any Twynam in the Bahamas ever, simply the fact that a Twynam went there (can't recall his first name but have it at home). If you'd like to email me at home at email address removed by moderator to prevent spamming - please contact by personal message I could give you more details. Thanks for your message anyhow. Happy Christmas. Paul