Emily McArthur lived alone in quite a sizable house in Clonskeagh Dublin, when she lost her mother and only brother in quick succession. She inherited both their estates which amounted to substantial fortune of £1,500, (1859) or just short of €250,000 in today’s currency. She also inherited her brother’s house in Canada. This sudden acquisition of wealth was probably a cold comfort for Emily, now alone without any immediate family.
She had at least two aunts living in Dublin, at the time, Charlotte who, like her mother married a bookseller, Joshua Porter. Her other aunt Abigale was married to the Rev Henry Revell, and lived Dublin county.
It was perhaps Rev Revell that introduced Emily to her future Husband Rev William John Burke.
Sources
https://familysearch.org
http://www.willcalendars.nationalarchives.ie/