Fisher was born in the Western Australian town of Beverley. She is a great-granddaughter of George Miles, a long-serving former member of the Western Australian Legislative Council, and a niece of former Nuclear Disarmament Party and Greens WA Senator Jo Vallentine.
Fisher was born in the Western Australian town of Beverley. As a descendant of George Miles, a long-serving former member of the Western Australian Legislative Council, she is also related to Jo Vallentine, a former senator from the Nuclear Disarmament Party and Greens WA.