MacLoghlin family

My great-great-grandmother was Anna Balfour MacLoghlin who emigrated to Australia in 1850 departing from Liverpool. When she died in 1893 her obituary referred to the fact that her family held large estates (probably in the Balfour family - my guess) and that she came fom Kilcarn, Co Meath. She married Robert Lovell Magrath in a Dublin diocese Church of Ireland Church in 1835 but the parish is unknown. Any help in locating her family or Robert's family would be appreciated.