Robina Pearson Finlayson Mcguire New Zealand

I'm searching for info on Robina McGuire who was born in Wairoa Hawkes Bay in 1869 to parents Annie McSheen and Peter Ramsey McGurie, she Married George Frederick Powell in 1891. On our family tree everything stops at the names of her parents and that's it. Any info on her parents, siblings and where they came from would be very much appreciated.