Thistle Yolette Harris
Through her teaching and writing, she did a great deal to popularize knowledge about Australian flora, to encourage domestic gardeners to include native plants in their gardens and to persuade a wider audience of the need for conservation measures. She published twelve books about Australian plants and teaching nature studies between 1938 and 1980, and contributed widely to scientific journals and reference books including The Australian Naturalist, Australian Wild Life, Australian Encyclopaedia and Science Wonders of Australia. She was also editor, at various times, of New Horizons in Education, Australian Wildlife and Wildlife Research News.