Re: Dargan's who came to Australia

Hello Dargan Family members!
My great-grandmother was Mary Dargan, born at Clonmel-Tipperary-Ireland in 1839 (according to her death certificate) She died in 17th March 1897 in Waverley-Sydney NSW Australia age 68 years, burried at Waverley Cemetery, Sydney.
Her parents were Michael Dargan, Farmer and Rose Anna Green.
She married John Stone, polish, miner at Cross Diggins, Victoria-Australia on Oct 8th 1859 at the Church of St Francis-Melbourne/ The couple lived first at Collingwood-Victoria.John Stone died in 1864, at Waverley also.
Issues: Joseph Stone 1860 Middletone-Victoria
Michael John Stone 1862 Middletone-Victoria
Rose Anna Summerfield, later Cadogan, 1864 MIDD
I am seeking information on Mary's arrival in Australia and her family in Clonmel, Tipperary-Ireland.
Best Regards to all.
Leon Cadogan