I saw your message that you have been researching Clack's in the UK and Aus and was wondering if you could help me. I'm trying to find ancestors of Jonathon Joseph Clack (my Gt Gt Gt Grandfather) who emigrated to Australia in 1853. He was born in Nottinghamshire in 1818 and was married to Rebecca Plane in St Ives, Huntingdonshire, England in September 1840 and they had 4 children Ann Maria, Emma, William and Alfred John, all emigrated with him. His fathers name was William Clack. If you have any information about him or his ancestors it would be appreciated if you could help me out, I have information on them in Australia.