The names of people who are my ancestors and where they came from?

Question:

The names of people who are my ancestors and where they came from?

my great great grandfather Francis Brennan born in aprox [1853] came to Australia somewhere between[1876 &1898] his wife was Sarah Carlyle, I dont know what port they landed in , But they ended up living in redbank plains ,Queensland most of their children where born in Ipswich, Queensland. I think they migrated from Northern Island, I have checked out hundreds of genealogy sights and each one I come to a halt with francises mum and dad John Brennan & Ann Gamble the only information I can find is their names. Thanks to Ted Pack and the genealogy answers, [so thanks guys], I found a lot more information on my yarrow & brennan ancestors, my dads side is smith, boy am I going to have fun with that one, I am putting all the information I find together for my kids, but I am having lots of fun finding out where my family came from and who they where, I realise how hard life must have been for them.Im still not having any luck with the Sydofsky branch.

Best Answer - Chosen by Asker: best of luck