She was married in 1868, so her DOB could be around 1840-46, before civil registrations. Her daughter born in the Curragh camp Kildare is also not registered either on the civil list (just got a nil return from Irish GRO) nor on Army records. Might just have to wait until they completed the records and see if her death record appears at some point.
The Police records do list marriage and postings so I might be able to trace through that way.