I've just seen your PS.
I don't know that much about her but what there is I can tell you...
Born Ann McChrystal, parents William McChrystal and Ellen Gillogly, Died 1867 in Scotland aged 36 so date of birth will be around 1831.
I'm assuming the date on the photo, 18th May 1855, is the marriage date. Her husband was called Michael McKune. I'm guessing/assuming that he must be Irish as well as they've stuck with this spelling right up to today and it's not the Scottish spelling of it.
She had 6 kids (in such a short life!) but all were born in Scotland so I shouldn't think they'd be in any Irish records. The first I know of was born in 1857 so they must have left Ireland between May 1855 and 1867.
And that's it until I get my notes sorted. I've probably missed something as I have papers all ove the place
Many thanks, Debbie