Hi Patricia and Carolyn, thank you for you replies. I have frustratingly little to go on, only their lives upon arrival in South Australia. Australian immigration and hospital docs record them as Clare natives, having left Plymouth 10/9/1857 and arriving on Adelaide aboard the Caucasian on Christmas Day. So, nothing about Eliza's past. Other than references to Patrick Edward O'Loughlin being born in Ennistymon, Irish geographical info is absent. I too have seen reference to Thomas Joseph Henry Oloughlin/O'Loughlin, born 1800, being P. E.'s father, but - as you say - no proof. As to their children, all were born in South Australia, including my great grandmother Susan (Susie) Sarah Caroline O'Loughlin. The first child, Louisa Maria, was born 15/3/58 which indicates Eliza was pregnant when they embarked upon a new life in Australia. The ship's arrival manifest clearly refers to Patrick and Eliza O'Loughlin from Clare, aged 30 and 18 respectively. Eliza'a embarkation age was also 18, so - if accurate - she could have been born in 1839. Lots of gaps. I take, and thank you for, your tip about the CH&GC, so I may have to take that route.