 She began writing a diary in 1850 while living on a farm with her husband near where Canberra was later founded, and continued her diary entries after she moved to Eden.Mowle died in Balmain, Sydney on 15 September 1857, due to complications from the birth of her sixth child two weeks previously.Her diaries were preserved and are considered valuable as they provide a female perspective on life in regional Australia at this time.