Sorry for the delay in replying. Yes this is a match. Margaret and her husband Dan Powell (m Clare in 1851) came to Aust in 1853 with Michael Hanrahan and Con Loughery. They lived in Ballarat, Carngham and Clarkes Hill (Bungaree). Margaret died in 1900 and is buried in Ballarat Nem Cemetery. I have further info if you desire.