She was born on 27 April 1844, the daughter of William John Swainson and his second wife, Anne Grasby.
She was taught art by her father who was a competent artist in his own right.
She married Arthur Halcombe on 3 December 1863 at St James' Church, Hutt.Her artworks are in the Museum of New Zealand Te Papa Tongarewa, Auckland Art Gallery, and Puke Ariki.