FLEMING/KEATING families LAOIS

I'm looking for information on the families of my 2x Great Grandmother,Catherine FLEMING,(1839-1921).

Working from information in the Griffiths Valuations for  Laois, I believe that she was born in Killabban Parish in Queens County,now Laois,the daughter of  John FLEMING and Catherine KEATING,also from the same Parish.Catherine emigrated to  Port Phillip, (Melbourne),Victoria, Australia,in October 1857

on the "Mindoro."Her parents were possibly deceased at this stage.(The Passenger Lists to Victoria state that she was a native of Queens County,but I am guessing the parish.That's the one that seems most likely,from the Griffiths Valuations.)

She met up with Henry Barlow,an  English goldminer,and settled down with him in the Rushworth area of Victoria,where they brought up their 10 children.I would be grateful for any information on these families in Laois.