She's
Mary Miranda nn
Mira. The only difficult thing was that it took her a very long time to figure out what her name was - she was never called anything BUT
Mira. So if you asked her whole name she'd say
Mira Mary Miranda or
Mary Mira Miranda, etc. Otherwise it's no biggie - her mom (my sister-in-law) goes by her middle name and I did for a while.
Some nickname ideas:
Cat /
Kit /
Kay /
Cathy - I think
Cathy would be very sweet on a young girl.